Overwintering guide
How to overwinter sedum 'autumn joy'
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills sedum 'autumn joy' in winter
Cutting sedum 'autumn joy' 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 sedum 'autumn joy' care
Overwintering sedum 'autumn joy' — FAQ
Does sedum 'autumn joy' need to come indoors for winter?
Sedum 'Autumn Joy' is hardy to roughly USDA zone 3 — winter lows around -40°C. That means it can stay outside all winter in most temperate gardens. Sedum 'Autumn Joy' 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 sedum 'autumn joy' for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water sedum 'autumn joy' in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills sedum 'autumn joy' over winter?
Cutting sedum 'autumn joy' 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.