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