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