Overwintering guide
How to overwinter glandular 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 glandular heron's bill in winter
Cutting glandular 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 glandular heron's bill care
Overwintering glandular heron's bill — FAQ
Does glandular heron's bill need to come indoors for winter?
Glandular 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. Glandular 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 glandular heron's bill for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water glandular heron's bill in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills glandular heron's bill over winter?
Cutting glandular 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.