Growli

Overwintering guide

How to overwinter smooth solomon's seal

Verdict
Stays outside
When
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
Hardiness
Smooth Solomon's Seal is hardy to roughly USDA zone 3 — winter lows around -40°C. That means it can stay outside all winter in most temperate gardens.

Winter watering

No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.

The mistake that kills smooth solomon's seal in winter

Cutting smooth solomon's seal 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 smooth solomon's seal care

Overwintering smooth solomon's seal — FAQ

Does smooth solomon's seal need to come indoors for winter?

Smooth Solomon's Seal is hardy to roughly USDA zone 3 — winter lows around -40°C. That means it can stay outside all winter in most temperate gardens. Smooth Solomon's Seal 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 smooth solomon's seal for winter?

Tidy and mulch in late autumn; leave the plant undisturbed until spring.

How often should I water smooth solomon's seal in winter?

No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.

What kills smooth solomon's seal over winter?

Cutting smooth solomon's seal 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.