Overwintering guide
How to overwinter sorbus 'joseph rock'
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills sorbus 'joseph rock' in winter
Cutting sorbus 'joseph rock' hard back in autumn "to tidy up". That removes the growth that shelters the crown, and on some plants removes next season's flower buds entirely.
More sorbus 'joseph rock' care
Overwintering sorbus 'joseph rock' — FAQ
Does sorbus 'joseph rock' need to come indoors for winter?
Sorbus 'Joseph Rock' is hardy to roughly USDA zone 5 — winter lows around -29°C. That means it can stay outside all winter in most temperate gardens. Sorbus 'Joseph Rock' is properly hardy and overwinters outside without fuss. Tidy away anything dead or diseased, apply a mulch over the crown to steady soil temperatures, and otherwise leave it alone — many hardy plants actually need a cold period to flower and grow well the following year. Save hard pruning for the right season rather than doing it in autumn.
When should I move sorbus 'joseph rock' for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water sorbus 'joseph rock' in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills sorbus 'joseph rock' over winter?
Cutting sorbus 'joseph rock' hard back in autumn "to tidy up". That removes the growth that shelters the crown, and on some plants removes next season's flower buds entirely.