Overwintering guide
How to overwinter blue ice bog rosemary
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills blue ice bog rosemary in winter
Cutting blue ice bog rosemary 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 blue ice bog rosemary care
- Overwintering bog rosemary — the species this cultivar belongs to
- Full blue ice bog rosemary care guide
- Blue Ice bog rosemary temperature range
- How often to water blue ice bog rosemary
- How to prune blue ice bog rosemary
- Common blue ice bog rosemary problems & fixes
- Best plant identifier apps — tested and ranked
Overwintering blue ice bog rosemary — FAQ
Does blue ice bog rosemary need to come indoors for winter?
Blue Ice bog rosemary is hardy to roughly USDA zone 2 — winter lows around -46°C. That means it can stay outside all winter in most temperate gardens. Blue Ice bog rosemary 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 blue ice bog rosemary for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water blue ice bog rosemary in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills blue ice bog rosemary over winter?
Cutting blue ice bog rosemary 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.