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