Overwintering guide
How to overwinter disc cactus
Winter watering
Water only occasionally — enough that the rootball never dries out completely, no more. No feeding until spring growth begins.
The mistake that kills disc cactus in winter
Bringing disc cactus into a warm living room. Too much winter warmth forces weak, pale growth that collapses when it goes back outside — cool and bright beats warm and dim.
More disc cactus care
Overwintering disc cactus — FAQ
Does disc cactus need to come indoors for winter?
Disc Cactus is hardy to roughly USDA zone 9 — winter lows around -7°C. That means it takes cool conditions but not a real freeze. Disc Cactus will take cool conditions but not a hard freeze, so the aim is a frost-free winter rather than a warm one. An unheated greenhouse, porch, conservatory or bright garage all work well. Keep it cool, bright and on the dry side, and it will hold steady until growth restarts in spring.
When should I move disc cactus for winter?
Move under cover before the first hard frost; back outside after the last spring frost.
How often should I water disc cactus in winter?
Water only occasionally — enough that the rootball never dries out completely, no more. No feeding until spring growth begins.
What kills disc cactus over winter?
Bringing disc cactus into a warm living room. Too much winter warmth forces weak, pale growth that collapses when it goes back outside — cool and bright beats warm and dim.