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