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