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