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