Overwintering guide
How to overwinter aglaonema gemini
Winter watering
Cut watering right back — aglaonema gemini 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 aglaonema gemini in winter
Watering on the same schedule as summer. In winter that keeps the roots sodden while the plant is barely drinking, and aglaonema gemini rots from the base.
More aglaonema gemini care
Overwintering aglaonema gemini — FAQ
Does aglaonema gemini need to come indoors for winter?
Aglaonema Gemini is hardy to roughly USDA zone 10 — winter lows around -1°C. That means it will not survive frost and needs to come inside. Aglaonema Gemini 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 aglaonema gemini for winter?
Bring indoors when nights start dropping below about 10°C, ahead of the first frost.
How often should I water aglaonema gemini in winter?
Cut watering right back — aglaonema gemini uses far less while growth slows, and cold, wet compost is the usual cause of winter root rot. Stop feeding until spring.
What kills aglaonema gemini over winter?
Watering on the same schedule as summer. In winter that keeps the roots sodden while the plant is barely drinking, and aglaonema gemini rots from the base.