Overwintering guide
How to overwinter onzuka bishop's cap
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 onzuka bishop's cap in winter
Bringing onzuka bishop's cap 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 onzuka bishop's cap care
- Overwintering bishop's cap cactus — the species this cultivar belongs to
- Full onzuka bishop's cap care guide
- Onzuka Bishop's Cap temperature range
- How often to water onzuka bishop's cap
- How to prune onzuka bishop's cap
- Common onzuka bishop's cap problems & fixes
- Best plant identifier apps — tested and ranked
Overwintering onzuka bishop's cap — FAQ
Does onzuka bishop's cap need to come indoors for winter?
Onzuka Bishop's Cap is hardy to roughly USDA zone 9 — winter lows around -7°C. That means it takes cool conditions but not a real freeze. Onzuka Bishop's Cap 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 onzuka bishop's cap for winter?
Move under cover before the first hard frost; back outside after the last spring frost.
How often should I water onzuka bishop's cap in winter?
Water only occasionally — enough that the rootball never dries out completely, no more. No feeding until spring growth begins.
What kills onzuka bishop's cap over winter?
Bringing onzuka bishop's cap 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.