Overwintering guide
How to overwinter large-leaved waterleaf
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills large-leaved waterleaf in winter
Cutting large-leaved waterleaf 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 large-leaved waterleaf care
Overwintering large-leaved waterleaf — FAQ
Does large-leaved waterleaf need to come indoors for winter?
Large-Leaved Waterleaf is hardy to roughly USDA zone 5 — winter lows around -29°C. That means it can stay outside all winter in most temperate gardens. Large-Leaved Waterleaf 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 large-leaved waterleaf for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water large-leaved waterleaf in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills large-leaved waterleaf over winter?
Cutting large-leaved waterleaf 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.