Overwintering guide
How to overwinter nasturtium 'empress of india'
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 nasturtium 'empress of india' in winter
Bringing nasturtium 'empress of india' 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 nasturtium 'empress of india' care
- Overwintering nasturtium — the species this cultivar belongs to
- Full nasturtium 'empress of india' care guide
- Nasturtium 'Empress of India' temperature range
- How often to water nasturtium 'empress of india'
- How to prune nasturtium 'empress of india'
- Common nasturtium 'empress of india' problems & fixes
- Best plant identifier apps — tested and ranked
Overwintering nasturtium 'empress of india' — FAQ
Does nasturtium 'empress of india' need to come indoors for winter?
Nasturtium 'Empress of India' is hardy to roughly USDA zone 9 — winter lows around -7°C. That means it takes cool conditions but not a real freeze. Nasturtium 'Empress of India' 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 nasturtium 'empress of india' for winter?
Move under cover before the first hard frost; back outside after the last spring frost.
How often should I water nasturtium 'empress of india' in winter?
Water only occasionally — enough that the rootball never dries out completely, no more. No feeding until spring growth begins.
What kills nasturtium 'empress of india' over winter?
Bringing nasturtium 'empress of india' 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.