Overwintering guide
How to overwinter henderson's allamanda
Winter watering
Cut watering right back — henderson's allamanda 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 henderson's allamanda in winter
Watering on the same schedule as summer. In winter that keeps the roots sodden while the plant is barely drinking, and henderson's allamanda rots from the base.
More henderson's allamanda care
- Overwintering golden trumpet — the species this cultivar belongs to
- Full henderson's allamanda care guide
- Henderson's Allamanda temperature range
- How often to water henderson's allamanda
- How to prune henderson's allamanda
- Common henderson's allamanda problems & fixes
- Best plant identifier apps — tested and ranked
Overwintering henderson's allamanda — FAQ
Does henderson's allamanda need to come indoors for winter?
Henderson's Allamanda is hardy to roughly USDA zone 10 — winter lows around -1°C. That means it will not survive frost and needs to come inside. Henderson's Allamanda 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 henderson's allamanda for winter?
Bring indoors when nights start dropping below about 10°C, ahead of the first frost.
How often should I water henderson's allamanda in winter?
Cut watering right back — henderson's allamanda uses far less while growth slows, and cold, wet compost is the usual cause of winter root rot. Stop feeding until spring.
What kills henderson's allamanda over winter?
Watering on the same schedule as summer. In winter that keeps the roots sodden while the plant is barely drinking, and henderson's allamanda rots from the base.