Overwintering guide
How to overwinter sanguisorba obtusa
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills sanguisorba obtusa in winter
Cutting sanguisorba obtusa 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 sanguisorba obtusa care
Overwintering sanguisorba obtusa — FAQ
Does sanguisorba obtusa need to come indoors for winter?
Sanguisorba obtusa is hardy to roughly USDA zone 4 — winter lows around -34°C. That means it can stay outside all winter in most temperate gardens. Sanguisorba obtusa 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 sanguisorba obtusa for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water sanguisorba obtusa in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills sanguisorba obtusa over winter?
Cutting sanguisorba obtusa 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.