Growli

Overwintering guide

How to overwinter lemboglossum rossii

Verdict
Bring indoors
When
Bring indoors when nights start dropping below about 10°C, ahead of the first frost.
Hardiness
Lemboglossum rossii is hardy to roughly USDA zone 10 — winter lows around -1°C. That means it will not survive frost and needs to come inside.

Winter watering

Cut watering right back — lemboglossum rossii uses far less while growth slows, and cold, wet compost is the usual cause of winter root rot. Stop feeding until spring.

The mistake that kills lemboglossum rossii in winter

Watering on the same schedule as summer. In winter that keeps the roots sodden while the plant is barely drinking, and lemboglossum rossii rots from the base.

More lemboglossum rossii care

Overwintering lemboglossum rossii — FAQ

Does lemboglossum rossii need to come indoors for winter?

Lemboglossum rossii is hardy to roughly USDA zone 10 — winter lows around -1°C. That means it will not survive frost and needs to come inside. Lemboglossum rossii is frost-tender, so overwintering means bringing it inside and letting it rest rather than pushing it to grow. Move it indoors well before the first frost, give it the brightest spot you have (light levels indoors drop sharply in winter), and keep it away from both cold window glass and hot radiators — the swing between the two does more damage than the cold itself.

When should I move lemboglossum rossii for winter?

Bring indoors when nights start dropping below about 10°C, ahead of the first frost.

How often should I water lemboglossum rossii in winter?

Cut watering right back — lemboglossum rossii uses far less while growth slows, and cold, wet compost is the usual cause of winter root rot. Stop feeding until spring.

What kills lemboglossum rossii over winter?

Watering on the same schedule as summer. In winter that keeps the roots sodden while the plant is barely drinking, and lemboglossum rossii rots from the base.