Overwintering guide
How to overwinter flying saucer 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 flying saucer cactus in winter
Bringing flying saucer 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 flying saucer cactus care
Overwintering flying saucer cactus — FAQ
Does flying saucer cactus need to come indoors for winter?
Flying Saucer Cactus is hardy to roughly USDA zone 9 — winter lows around -7°C. That means it takes cool conditions but not a real freeze. Flying Saucer 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 flying saucer cactus for winter?
Move under cover before the first hard frost; back outside after the last spring frost.
How often should I water flying saucer cactus in winter?
Water only occasionally — enough that the rootball never dries out completely, no more. No feeding until spring growth begins.
What kills flying saucer cactus over winter?
Bringing flying saucer 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.