Overwintering guide
How to overwinter digyna sweet box
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills digyna sweet box in winter
Cutting digyna sweet box 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 digyna sweet box care
Overwintering digyna sweet box — FAQ
Does digyna sweet box need to come indoors for winter?
Digyna Sweet Box is hardy to roughly USDA zone 6 — winter lows around -23°C. That means it can stay outside all winter in most temperate gardens. Digyna Sweet Box 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 digyna sweet box for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water digyna sweet box in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills digyna sweet box over winter?
Cutting digyna sweet box 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.