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