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