Growli

Overwintering guide

How to overwinter white sails

Verdict
Bring indoors
When
Bring indoors when nights start dropping below about 10°C, ahead of the first frost.
Hardiness
White Sails 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 — white sails 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 white sails in winter

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

More white sails care

Overwintering white sails — FAQ

Does white sails need to come indoors for winter?

White Sails is hardy to roughly USDA zone 11 — winter lows around 4°C. That means it will not survive frost and needs to come inside. White Sails 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 white sails for winter?

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

How often should I water white sails in winter?

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

What kills white sails over winter?

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