Western Maidenhair Fern
Adiantum aleuticum
Also known as Western Maidenhair, Aleutian Maidenhair Fern, Aleutian Maidenhair
Climate Match for your location
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A delicate deciduous fern with fan-shaped, bright green fronds and distinctive dark, wiry stems. It thrives in moist, shaded woodland conditions and is prized for its airy, elegant texture.
Why grow it
Western maidenhair fern offers finer, more delicate foliage than many hardy ferns suitable to temperate regions, making it valuable where an airy aesthetic is desired in shaded understory plantings. Unlike some maidenhair species, it is deciduous and cold-hardy to USDA zone 3, performing reliably in northern gardens without requiring greenhouse protection. Its preference for consistently moist but well-draining soil and partial shade aligns it well with riparian edges and moist woodland margins in permaculture design.
Watch out for
This fern spreads gradually via rhizomes and spores; in favorable conditions it may colonize more area than initially expected, though it is not aggressive enough to require active containment in most settings. Young fronds emerge late in spring and are frost-tender, so late-season cold snaps can set back the season's growth. Extremely dry or waterlogged soil conditions both stress the plant, and it does not tolerate full sun or prolonged drought well.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Pteridaceae
Native to the United States
Native Range
Western North America
Native to: Alaska, Arizona, California, Colorado, Idaho, Maryland, Maine, Michigan, Montana, Nevada, Oregon, Pennsylvania, Utah, Vermont, Washington, West Virginia, Wyoming
Seasonality
Season of Interest
Herb
Soft non-woody plants of the field layer.
Succession Role
Tolerances & Soil
Establishment & Care
- Establishment
- Maintenance
- Propagation
A delicate deciduous fern with fan-shaped, bright green fronds and distinctive dark, wiry stems. It thrives in moist, shaded woodland conditions and is prized for its airy, elegant texture.
Climate Match for your location
See how well Western Maidenhair Fern grows in your area.
Enter your ZIP code and we'll show you how this plant fits your local climate.
Why grow it
Western maidenhair fern offers finer, more delicate foliage than many hardy ferns suitable to temperate regions, making it valuable where an airy aesthetic is desired in shaded understory plantings. Unlike some maidenhair species, it is deciduous and cold-hardy to USDA zone 3, performing reliably in northern gardens without requiring greenhouse protection. Its preference for consistently moist but well-draining soil and partial shade aligns it well with riparian edges and moist woodland margins in permaculture design.
Watch out for
This fern spreads gradually via rhizomes and spores; in favorable conditions it may colonize more area than initially expected, though it is not aggressive enough to require active containment in most settings. Young fronds emerge late in spring and are frost-tender, so late-season cold snaps can set back the season's growth. Extremely dry or waterlogged soil conditions both stress the plant, and it does not tolerate full sun or prolonged drought well.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Pteridaceae
Native to the United States
Native Range
Western North America
Native to: Alaska, Arizona, California, Colorado, Idaho, Maryland, Maine, Michigan, Montana, Nevada, Oregon, Pennsylvania, Utah, Vermont, Washington, West Virginia, Wyoming
Seasonality
Season of Interest
Herb
Soft non-woody plants of the field layer.
Succession Role
Tolerances & Soil
Establishment & Care
- Establishment
- Maintenance
- Propagation
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