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