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