Growli

Overwintering guide

How to overwinter blue frills cape primrose

Verdict
Bring indoors
When
Bring indoors when nights start dropping below about 10°C, ahead of the first frost.
Hardiness
Blue Frills cape primrose 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 — blue frills cape primrose 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 blue frills cape primrose in winter

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

More blue frills cape primrose care

Overwintering blue frills cape primrose — FAQ

Does blue frills cape primrose need to come indoors for winter?

Blue Frills cape primrose is hardy to roughly USDA zone 10 — winter lows around -1°C. That means it will not survive frost and needs to come inside. Blue Frills cape primrose 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 blue frills cape primrose for winter?

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

How often should I water blue frills cape primrose in winter?

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

What kills blue frills cape primrose over winter?

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