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