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