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