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