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