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