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