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