Overwintering guide
How to overwinter silver knight heather
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills silver knight heather in winter
Cutting silver knight heather 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 silver knight heather care
- Overwintering heather — the species this cultivar belongs to
- Full silver knight heather care guide
- Silver Knight heather temperature range
- How often to water silver knight heather
- How to prune silver knight heather
- Common silver knight heather problems & fixes
- Best plant identifier apps — tested and ranked
Overwintering silver knight heather — FAQ
Does silver knight heather need to come indoors for winter?
Silver Knight heather is hardy to roughly USDA zone 4 — winter lows around -34°C. That means it can stay outside all winter in most temperate gardens. Silver Knight heather 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 silver knight heather for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water silver knight heather in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills silver knight heather over winter?
Cutting silver knight heather 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.