China Rose
- Cold stratification
- Required
- Hardiness
- Hardy
Cold-season planning
Winter Sowing Planner
Eligibility comes only from explicit winter-sowing research fields.
Ready to sow
December Eligible Seeds
Elderberry
- Cold stratification
- Required
- Hardiness
- Hardy
Rose — Augosa (beach)
- Cold stratification
- Required
- Hardiness
- Hardy
Rosehips
- Cold stratification
- Required
- Hardiness
- Unknown
Seed research
Structured Research Fields
2 seed(s) remain unknown/unresearched. Research is displayed read-only.
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Beans need warm soil and are normally direct sown after the soil warms.
- Source
- University of Minnesota Extension — Growing beans in home gardens: https://extension.umn.edu/vegetables/growing-beans
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Beans need warm soil and are normally direct sown after the soil warms.
- Source
- University of Minnesota Extension — Growing beans in home gardens: https://extension.umn.edu/vegetables/growing-beans
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Beans need warm soil and are normally direct sown after the soil warms.
- Source
- University of Minnesota Extension — Growing beans in home gardens: https://extension.umn.edu/vegetables/growing-beans
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Beans need warm soil and are normally direct sown after the soil warms.
- Source
- University of Minnesota Extension — Growing beans in home gardens: https://extension.umn.edu/vegetables/growing-beans
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Beans need warm soil and are normally direct sown after the soil warms.
- Source
- University of Minnesota Extension — Growing beans in home gardens: https://extension.umn.edu/vegetables/growing-beans
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Beans need warm soil and are normally direct sown after the soil warms.
- Source
- University of Minnesota Extension — Growing beans in home gardens: https://extension.umn.edu/vegetables/growing-beans
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Beans need warm soil and are normally direct sown after the soil warms.
- Source
- University of Minnesota Extension — Growing beans in home gardens: https://extension.umn.edu/vegetables/growing-beans
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Beans need warm soil and are normally direct sown after the soil warms.
- Source
- University of Minnesota Extension — Growing beans in home gardens: https://extension.umn.edu/vegetables/growing-beans
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Beans need warm soil and are normally direct sown after the soil warms.
- Source
- University of Minnesota Extension — Growing beans in home gardens: https://extension.umn.edu/vegetables/growing-beans
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Beans need warm soil and are normally direct sown after the soil warms.
- Source
- University of Minnesota Extension — Growing beans in home gardens: https://extension.umn.edu/vegetables/growing-beans
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Beans need warm soil and are normally direct sown after the soil warms.
- Source
- University of Minnesota Extension — Growing beans in home gardens: https://extension.umn.edu/vegetables/growing-beans
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Beans need warm soil and are normally direct sown after the soil warms.
- Source
- University of Minnesota Extension — Growing beans in home gardens: https://extension.umn.edu/vegetables/growing-beans
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Beans need warm soil and are normally direct sown after the soil warms.
- Source
- University of Minnesota Extension — Growing beans in home gardens: https://extension.umn.edu/vegetables/growing-beans
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. Cold exposure is not required for bee balm, but January-February sowing is suitable for a hardy perennial.
- Source
- Lady Bird Johnson Wildflower Center — Monarda fistulosa seed treatment: https://www.wildflower.org/plants/result.php?id_plant=mofi | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. This crop is normally direct sown and develops a root that is best left undisturbed.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. Sow in January-February so outdoor cold provides the required stratification period.
- Source
- Lady Bird Johnson Wildflower Center — Verbena hastata seed treatment: https://www.wildflower.org/plants/result.php?id_plant=veha2 | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Unknown
- Hardiness
- Unknown
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Melons need warmth and are especially sensitive to root disturbance.
- Source
- University of Minnesota Extension — Growing melons in the home garden: https://extension.umn.edu/gardening-minnesota/growing-melons-home-garden
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Melons need warmth and are especially sensitive to root disturbance.
- Source
- University of Minnesota Extension — Growing melons in the home garden: https://extension.umn.edu/gardening-minnesota/growing-melons-home-garden
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Melons need warmth and are especially sensitive to root disturbance.
- Source
- University of Minnesota Extension — Growing melons in the home garden: https://extension.umn.edu/gardening-minnesota/growing-melons-home-garden
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Melons need warmth and are especially sensitive to root disturbance.
- Source
- University of Minnesota Extension — Growing melons in the home garden: https://extension.umn.edu/gardening-minnesota/growing-melons-home-garden
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. This crop is normally direct sown and develops a root that is best left undisturbed.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. This crop is normally direct sown and develops a root that is best left undisturbed.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. This crop is normally direct sown and develops a root that is best left undisturbed.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. This crop is normally direct sown and develops a root that is best left undisturbed.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Required
- Hardiness
- Hardy
- Eligible months
- December, January, February
- Notes
- Suitable for early winter sowing to provide a long natural dormancy-breaking period. Rose seed can germinate slowly and may need more than one season.
- Source
- USDA Forest Service — Woody Plant Seed Manual (Rosa/Sambucus): https://www.fs.usda.gov/rm/pubs_series/wo/wo_ah727.pdf | MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners
- Suitability
- Suitable
- Cold stratification
- Beneficial
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. January-February outdoor exposure can provide beneficial cold stratification and freeze-thaw cycles.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Beneficial
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. January-February outdoor exposure can provide beneficial cold stratification and freeze-thaw cycles.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Beneficial
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. January-February outdoor exposure can provide beneficial cold stratification and freeze-thaw cycles.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Beneficial
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. January-February outdoor exposure can provide beneficial cold stratification and freeze-thaw cycles.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Beneficial
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. January-February outdoor exposure can provide beneficial cold stratification and freeze-thaw cycles.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Beneficial
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. January-February outdoor exposure can provide beneficial cold stratification and freeze-thaw cycles.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Required
- Hardiness
- Hardy
- Eligible months
- December, January, February
- Notes
- Suitable for early winter sowing, but elderberry has complex seed dormancy. A long natural cold period helps; germination may be slow or delayed beyond the first spring.
- Source
- Lady Bird Johnson Wildflower Center — Sambucus canadensis seed treatment: https://www.wildflower.org/plants/result.php?id_plant=sanic4 | MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners
- Suitability
- Suitable
- Cold stratification
- Beneficial
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. January-February outdoor exposure can provide beneficial cold stratification and freeze-thaw cycles.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Beneficial
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. January-February outdoor exposure can provide beneficial cold stratification and freeze-thaw cycles.
- Source
- Lady Bird Johnson Wildflower Center — Solidago seed treatment: https://www.wildflower.org/plants/result.php?id_plant=SOSP2 | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — Growing summer squash and zucchini in home gardens: https://extension.umn.edu/vegetables/growing-summer-squash-and-zucchini | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — Growing summer squash and zucchini in home gardens: https://extension.umn.edu/vegetables/growing-summer-squash-and-zucchini | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — Growing summer squash and zucchini in home gardens: https://extension.umn.edu/vegetables/growing-summer-squash-and-zucchini | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — Growing summer squash and zucchini in home gardens: https://extension.umn.edu/vegetables/growing-summer-squash-and-zucchini | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March; ground cherry is tender and seedlings should not be exposed to hard freezes.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Unknown
- Cold stratification
- Unknown
- Hardiness
- Unknown
- Eligible months
- Not recorded
- Notes
- Hibiscus species is not identified. Hardiness and dormancy requirements vary, so winter-sowing suitability cannot be assigned reliably.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Suitable for winter sowing as a hardy hibiscus. Sow in January-February; scarifying the seed coat may also improve germination.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Beneficial
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. January-February outdoor exposure can provide beneficial cold stratification and freeze-thaw cycles.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Beneficial
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. January-February outdoor exposure can provide beneficial cold stratification and freeze-thaw cycles.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Beneficial
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. January-February outdoor exposure can provide beneficial cold stratification and freeze-thaw cycles.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — Growing summer squash and zucchini in home gardens: https://extension.umn.edu/vegetables/growing-summer-squash-and-zucchini | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Beneficial
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. January-February outdoor exposure can provide beneficial cold stratification and freeze-thaw cycles.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Nasturtiums are frost-sensitive and are normally direct sown to avoid root disturbance.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Nasturtiums are frost-sensitive and are normally direct sown to avoid root disturbance.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. This crop is normally direct sown and develops a root that is best left undisturbed.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Unknown
- Cold stratification
- Unknown
- Hardiness
- Unknown
- Eligible months
- Not recorded
- Notes
- Mixture contains unspecified annual, biennial and perennial species, so a reliable milk-jug winter-sowing window cannot be assigned without the species list.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Unknown
- Hardiness
- Unknown
- Eligible months
- January, February
- Notes
- Suitable as a general perennial winter-sowing mix, but individual species may have different dormancy needs.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Unknown
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Unknown
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — Growing summer squash and zucchini in home gardens: https://extension.umn.edu/vegetables/growing-summer-squash-and-zucchini | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — Growing summer squash and zucchini in home gardens: https://extension.umn.edu/vegetables/growing-summer-squash-and-zucchini | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — Growing summer squash and zucchini in home gardens: https://extension.umn.edu/vegetables/growing-summer-squash-and-zucchini | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — Growing summer squash and zucchini in home gardens: https://extension.umn.edu/vegetables/growing-summer-squash-and-zucchini | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — Growing summer squash and zucchini in home gardens: https://extension.umn.edu/vegetables/growing-summer-squash-and-zucchini | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. This crop is normally direct sown and develops a root that is best left undisturbed.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. This crop is normally direct sown and develops a root that is best left undisturbed.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. This crop is normally direct sown and develops a root that is best left undisturbed.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. This crop is normally direct sown and develops a root that is best left undisturbed.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Required
- Hardiness
- Hardy
- Eligible months
- December, January, February
- Notes
- Suitable for early winter sowing to provide a long natural dormancy-breaking period. Rose seed can germinate slowly and may need more than one season.
- Source
- USDA Forest Service — Woody Plant Seed Manual (Rosa/Sambucus): https://www.fs.usda.gov/rm/pubs_series/wo/wo_ah727.pdf | MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners
- Suitability
- Suitable
- Cold stratification
- Required
- Hardiness
- Unknown
- Eligible months
- December, January, February
- Notes
- Suitable for early winter sowing to provide a long natural dormancy-breaking period. Rose seed can germinate slowly and may need more than one season.
- Source
- USDA Forest Service — Woody Plant Seed Manual (Rosa/Sambucus): https://www.fs.usda.gov/rm/pubs_series/wo/wo_ah727.pdf | MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. Rosemary is not winter hardy in Michigan; start indoors instead.
- Source
- MSU Extension — Rosemary: The herb with winter problems: https://www.canr.msu.edu/news/rosemary_the_herb_with_winter_problems
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- February, March
- Notes
- Suitable for milk-jug winter sowing as a hardy/cool-season seed. Sow in February-March; seedlings can handle cool spring conditions.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — Growing summer squash and zucchini in home gardens: https://extension.umn.edu/vegetables/growing-summer-squash-and-zucchini | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — Growing summer squash and zucchini in home gardens: https://extension.umn.edu/vegetables/growing-summer-squash-and-zucchini | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug winter-sowing workflow. This warm-season crop needs warm conditions and is better direct sown or started separately near planting time.
- Source
- University of Minnesota Extension — Growing summer squash and zucchini in home gardens: https://extension.umn.edu/vegetables/growing-summer-squash-and-zucchini | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Beneficial
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good milk-jug winter-sowing candidate. January-February outdoor exposure can provide beneficial cold stratification and freeze-thaw cycles.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March; seedlings are frost-sensitive, so keep the jug protected during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March; seedlings are frost-sensitive, so keep the jug protected during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March; seedlings are frost-sensitive, so keep the jug protected during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March; seedlings are frost-sensitive, so keep the jug protected during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March; seedlings are frost-sensitive, so keep the jug protected during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March; seedlings are frost-sensitive, so keep the jug protected during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March; seedlings are frost-sensitive, so keep the jug protected during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March; seedlings are frost-sensitive, so keep the jug protected during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March; seedlings are frost-sensitive, so keep the jug protected during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March; seedlings are frost-sensitive, so keep the jug protected during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for outdoor milk-jug winter sowing in Zone 6B. This is a warm-season/tender plant that needs warmer germination and growing conditions.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Melons need warmth and are especially sensitive to root disturbance.
- Source
- University of Minnesota Extension — Growing melons in the home garden: https://extension.umn.edu/gardening-minnesota/growing-melons-home-garden
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Melons need warmth and are especially sensitive to root disturbance.
- Source
- University of Minnesota Extension — Growing melons in the home garden: https://extension.umn.edu/gardening-minnesota/growing-melons-home-garden
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Melons need warmth and are especially sensitive to root disturbance.
- Source
- University of Minnesota Extension — Growing melons in the home garden: https://extension.umn.edu/gardening-minnesota/growing-melons-home-garden
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Melons need warmth and are especially sensitive to root disturbance.
- Source
- University of Minnesota Extension — Growing melons in the home garden: https://extension.umn.edu/gardening-minnesota/growing-melons-home-garden
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- Not recorded
- Notes
- Not recommended for milk-jug winter sowing. Melons need warmth and are especially sensitive to root disturbance.
- Source
- University of Minnesota Extension — Growing melons in the home garden: https://extension.umn.edu/gardening-minnesota/growing-melons-home-garden
- Suitability
- Not Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- Not recorded
- Notes
- Not recommended for the milk-jug transplant method. It is better direct sown outdoors at its normal planting time.
- Source
- University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing | Illinois Extension — When to plant: https://extension.illinois.edu/gardening/when-plant
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Hardy
- Eligible months
- January, February
- Notes
- Good hardy milk-jug winter-sowing candidate. Sow in January-February and let seedlings emerge naturally as conditions warm.
- Source
- MSU Extension — Winter sowing in containers for Michigan gardeners: https://www.canr.msu.edu/news/winter-sowing-in-containers-for-michigan-gardeners | University of Minnesota Extension — Jug it and grow: winter sowing for pollinator gardens: https://extension.umn.edu/yard-and-garden-news/jug-it-and-grow-winter-sowing-pollinator-gardens
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing
- Suitability
- Suitable
- Cold stratification
- Not Required
- Hardiness
- Tender
- Eligible months
- March
- Notes
- Late winter sow only. Sow in March because seedlings are frost-sensitive; protect during hard freezes and transplant after frost danger.
- Source
- Illinois Extension — January and February are prime time for winter sowing: https://extension.illinois.edu/blogs/ilriverhort/2023-12-29-january-and-february-are-prime-time-winter-sowing | University of Minnesota Extension — A Minnesota guide to garden timing: https://extension.umn.edu/yard-and-garden-news/minnesota-guide-garden-timing