Overwintering guide
How to overwinter blue star water lily
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 blue star water lily in winter
Bringing blue star water lily 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 blue star water lily care
- Overwintering blue star water lily — our other guide for the same plant
- Full blue star water lily care guide
- Blue Star Water Lily temperature range
- How often to water blue star water lily
- How to prune blue star water lily
- Common blue star water lily problems & fixes
- Best plant identifier apps — tested and ranked
Overwintering blue star water lily — FAQ
Does blue star water lily need to come indoors for winter?
Blue Star Water Lily is hardy to roughly USDA zone 9 — winter lows around -7°C. That means it takes cool conditions but not a real freeze. Blue Star Water Lily 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 blue star water lily for winter?
Move under cover before the first hard frost; back outside after the last spring frost.
How often should I water blue star water lily in winter?
Water only occasionally — enough that the rootball never dries out completely, no more. No feeding until spring growth begins.
What kills blue star water lily over winter?
Bringing blue star water lily 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.