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