Overwintering guide
How to overwinter rhododendron 'blue peter'
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills rhododendron 'blue peter' in winter
Cutting rhododendron 'blue peter' 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 rhododendron 'blue peter' care
Overwintering rhododendron 'blue peter' — FAQ
Does rhododendron 'blue peter' need to come indoors for winter?
Rhododendron 'Blue Peter' is hardy to roughly USDA zone 5 — winter lows around -29°C. That means it can stay outside all winter in most temperate gardens. Rhododendron 'Blue Peter' 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 rhododendron 'blue peter' for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water rhododendron 'blue peter' in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills rhododendron 'blue peter' over winter?
Cutting rhododendron 'blue peter' 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.