Overwintering guide
How to overwinter moth orchid
Winter watering
Cut watering right back — moth orchid 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 moth orchid in winter
Watering on the same schedule as summer. In winter that keeps the roots sodden while the plant is barely drinking, and moth orchid rots from the base.
More moth orchid care
Overwintering moth orchid — FAQ
Does moth orchid need to come indoors for winter?
Moth Orchid is hardy to roughly USDA zone 11 — winter lows around 4°C. That means it will not survive frost and needs to come inside. Moth Orchid 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 moth orchid for winter?
Bring indoors when nights start dropping below about 10°C, ahead of the first frost.
How often should I water moth orchid in winter?
Cut watering right back — moth orchid uses far less while growth slows, and cold, wet compost is the usual cause of winter root rot. Stop feeding until spring.
What kills moth orchid over winter?
Watering on the same schedule as summer. In winter that keeps the roots sodden while the plant is barely drinking, and moth orchid rots from the base.