Overwintering guide
How to overwinter umbel sun rose
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills umbel sun rose in winter
Cutting umbel sun rose 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 umbel sun rose care
Overwintering umbel sun rose — FAQ
Does umbel sun rose need to come indoors for winter?
Umbel Sun Rose is hardy to roughly USDA zone 7 — winter lows around -18°C. That means it can stay outside all winter in most temperate gardens. Umbel Sun Rose 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 umbel sun rose for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water umbel sun rose in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills umbel sun rose over winter?
Cutting umbel sun rose 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.