Growli

Overwintering guide

How to overwinter narrow-leaved kaempferia

Verdict
Keep frost-free
When
Move under cover before the first hard frost; back outside after the last spring frost.
Hardiness
Narrow-Leaved Kaempferia is hardy to roughly USDA zone 9 — winter lows around -7°C. That means it takes cool conditions but not a real freeze.

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 narrow-leaved kaempferia in winter

Bringing narrow-leaved kaempferia 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 narrow-leaved kaempferia care

Overwintering narrow-leaved kaempferia — FAQ

Does narrow-leaved kaempferia need to come indoors for winter?

Narrow-Leaved Kaempferia is hardy to roughly USDA zone 9 — winter lows around -7°C. That means it takes cool conditions but not a real freeze. Narrow-Leaved Kaempferia 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 narrow-leaved kaempferia for winter?

Move under cover before the first hard frost; back outside after the last spring frost.

How often should I water narrow-leaved kaempferia in winter?

Water only occasionally — enough that the rootball never dries out completely, no more. No feeding until spring growth begins.

What kills narrow-leaved kaempferia over winter?

Bringing narrow-leaved kaempferia 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.