Overwintering guide
How to overwinter echinops ritro
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills echinops ritro in winter
Cutting echinops ritro 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 echinops ritro care
Overwintering echinops ritro — FAQ
Does echinops ritro need to come indoors for winter?
Echinops ritro is hardy to roughly USDA zone 3 — winter lows around -40°C. That means it can stay outside all winter in most temperate gardens. Echinops ritro 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 echinops ritro for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water echinops ritro in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills echinops ritro over winter?
Cutting echinops ritro 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.