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