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Overwintering guide

How to overwinter anubias barteri var. nana

Verdict
Bring indoors
When
Bring indoors when nights start dropping below about 10°C, ahead of the first frost.
Hardiness
Anubias barteri var. nana is hardy to roughly USDA zone 11 — winter lows around 4°C. That means it will not survive frost and needs to come inside.

Winter watering

Cut watering right back — anubias barteri var. nana 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 anubias barteri var. nana in winter

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

More anubias barteri var. nana care

Overwintering anubias barteri var. nana — FAQ

Does anubias barteri var. nana need to come indoors for winter?

Anubias barteri var. nana is hardy to roughly USDA zone 11 — winter lows around 4°C. That means it will not survive frost and needs to come inside. Anubias barteri var. nana 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 anubias barteri var. nana for winter?

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

How often should I water anubias barteri var. nana in winter?

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

What kills anubias barteri var. nana over winter?

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