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