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