Overwintering guide
How to overwinter ferner osten maiden grass
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills ferner osten maiden grass in winter
Cutting ferner osten maiden grass 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 ferner osten maiden grass care
Overwintering ferner osten maiden grass — FAQ
Does ferner osten maiden grass need to come indoors for winter?
Ferner Osten Maiden Grass is hardy to roughly USDA zone 5 — winter lows around -29°C. That means it can stay outside all winter in most temperate gardens. Ferner Osten Maiden Grass 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 ferner osten maiden grass for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water ferner osten maiden grass in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills ferner osten maiden grass over winter?
Cutting ferner osten maiden grass 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.