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