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Giant chainfern

Woodwardia fimbriata

Also called Giant chain fern

Giant chainfern
Photo: Anthony Valois and the National Park Service, Public domain

Giant chainfern is a large evergreen fern native to western North America, grown in shaded, moist gardens. Give it shade, steady moisture and humus-rich soil, and it will develop fronds up to 1 to 3 m long.

Family
Blechnaceae (Blechn family)
Grows as
Fern, Perennial
Light
Full sun
Water
Keep soil consistently moist, never waterlogged for long; water more in summer.
Soil
Rich, humus-rich, well-drained but moist soil, such as leaf mould or compost-amended loam.
Temperature
Hardy in mild climates to about -10 °C; protect from hard frost and drying heat.
How easy
Moderate
Native range
W. Canada to Mexico (Baja California Norte, Sonora)

About

Woodwardia fimbriata, known by the common name giant chain fern, is an evergreen perennial fern species in the family Blechnaceae, in the eupolypods II clade of the order Polypodiales, in the class Polypodiopsida. It is native to western North America from British Columbia through California, including the Sierra Nevada, into Baja California.

It grows in coniferous forests and other moist wooded habitat.

Where it grows

Woodwardia fimbriata can be located along the western coast of North America from British Columbia in Canada to Baja California as well as the state of Nevada.

Other Woodwardia plants

Woodwardia prolifera · Rooting chainfern · Jewelled Chain Fern · Chainfern

Text excerpted from the Wikipedia article Woodwardia fimbriata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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