Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Giant Chain Fern (Woodwardia fimbriata)  is the largest fern in North America, with upright, arching fronds that are wide and lacy.  It can reach 3 to 5 feet tall.  It will be either evergreen or summer deciduous, depending on its growing conditions.


Giant chain fern prefers part to full shade and likes some moisture but does not want to be kept wet. Allowing it to dry out just a little between waterings is good. It prefers fertile soil with good drainage but is adaptable to different types of soil. To keep it looking fresh and vigorous, cut back to the ground in late winter. Due to its size and shape, it is excellent as an accent in shaded areas or a woodland setting.  

Plant type

Fern

Size

4 - 6 ft Tall
4 - 6 ft Wide

Form

Fountain

Growth rate

Moderate

Dormancy

Evergreen, Summer Semi-deciduous

Fragrance

Slight

Special uses

Containers, Hedge

Sun

Partial Shade, Deep Shade

Water

Moderate

Summer irrigation

Max 1x / week once established

Ease of care

Easy

Cold tolerance

Tolerates cold to 0 - 10° F

Soil drainage

Fast

Soil description

Prefers moist, fertile soil with good drainage.
Soil PH: 5 - 7

Maintenance

Remove dry fronds to improve appearance and encourage new growth

Sunset Zones

2, 3, 4*, 5*, 6*, 7*, 8, 9, 14*, 15*, 16*, 17*, 18, 19, 20, 21, 22, 23, 24

Site type

Forests, seeps or near springs in shade or part shade

Plant communities

Foothill Woodland, Valley Grassland, Yellow Pine Forest, Wetland-Riparian

Trees: Ponderosa Pine (Pinus ponderosa), Tanoak (Notholithocarpus densiflorus), Madrone (Arbutus menziesii), Oak (Quercus spp.), Coast Redwood (Sequoia sempervirens), Dogwood (Cornus spp.)


Other Plants: Maidenhair Fern (Adiantum spp., Deer Fern Blechnum spicant), Horsetail (Equisetum spp.), Polypody Fern (Polypodium spp.), Sword Fern (Polystichum spp.), Meadow Rue (Thalicturm spp.), Yerba Buena (Clinopodium douglasii), Western Columbine (Aquilegia formosa), Monkeyflower (Mimulus cardinalis or guttatus)