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