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