Overwintering guide
How to overwinter dimpled trout lily
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills dimpled trout lily in winter
Cutting dimpled trout lily 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 dimpled trout lily care
Overwintering dimpled trout lily — FAQ
Does dimpled trout lily need to come indoors for winter?
Dimpled Trout Lily is hardy to roughly USDA zone 4 — winter lows around -34°C. That means it can stay outside all winter in most temperate gardens. Dimpled Trout Lily 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 dimpled trout lily for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water dimpled trout lily in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills dimpled trout lily over winter?
Cutting dimpled trout lily 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.