Overwintering guide
How to overwinter tall green milkweed
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills tall green milkweed in winter
Cutting tall green milkweed hard back in autumn "to tidy up". That removes the growth that shelters the crown, and on some plants removes next season's flower buds entirely.
More tall green milkweed care
- Overwintering prairie milkweed — the species this cultivar belongs to
- Full tall green milkweed care guide
- Tall Green Milkweed temperature range
- How often to water tall green milkweed
- How to prune tall green milkweed
- Common tall green milkweed problems & fixes
- Best plant identifier apps — tested and ranked
Overwintering tall green milkweed — FAQ
Does tall green milkweed need to come indoors for winter?
Tall Green Milkweed is hardy to roughly USDA zone 4 — winter lows around -34°C. That means it can stay outside all winter in most temperate gardens. Tall Green Milkweed is properly hardy and overwinters outside without fuss. Tidy away anything dead or diseased, apply a mulch over the crown to steady soil temperatures, and otherwise leave it alone — many hardy plants actually need a cold period to flower and grow well the following year. Save hard pruning for the right season rather than doing it in autumn.
When should I move tall green milkweed for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water tall green milkweed in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills tall green milkweed over winter?
Cutting tall green milkweed hard back in autumn "to tidy up". That removes the growth that shelters the crown, and on some plants removes next season's flower buds entirely.