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