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