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