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