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