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