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