Does Polystichum munitum flower?

No. Sword fern is a fern, so it reproduces by spores released from the undersides of its fronds rather than by producing flowers or seeds.

How much light does sword fern need?

Sword fern grows best in part shade to full shade, mimicking the filtered light of a conifer forest floor. It can handle part sun if the soil stays consistently moist.

How much water does sword fern need?

Give sword fern medium, consistent moisture, especially during dry summer months. Established plants can handle short dry spells but look best without extended drought.

Is sword fern evergreen or does it die back in winter?

Sword fern keeps its fronds year round, making it a reliable source of green structure in the garden through fall and winter.

Is Common Sword Fern toxic to livestock?

The USDA PLANTS Database does not flag Common Sword Fern as toxic to livestock.

Is Common Sword Fern HOA-friendly?

Common Sword Fern takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Common Sword Fern

Name: Pollinator Patch
Author: Pollinator Patch

Polystichum munitum

Last reviewed: August 2026

Polystichum munitum is an evergreen fern with arching, sword shaped fronds that thrives in shaded woodland gardens across the Pacific Northwest and northern Rockies, doing best with part to full shade and steady, medium moisture.

Toxicity unknown

Common Sword Fern (Polystichum munitum) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

The USDA PLANTS Database (opens in new tab) does not flag Common Sword Fern as toxic to livestock.

Light

part shade

Water

medium

Size

12"–36" H × 12"–36" W

Bloom

N/A

Native to

CA, ID, MT, OR and 2 more states

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Browse plants for this ecoregion

Coast Range Puget Lowland Marine West Coast Forest Northwestern Forested Mountains Sierra Nevada Central California Foothills and Coastal Mountains Southern California Mountains North American Deserts Southern California/Northern Baja Coast

Common sword fern is a large evergreen fern with distinctive sword-shaped fronds that form dense, upright clumps. This native species thrives in shaded, moist conditions and maintains its deep green color year-round. It provides excellent texture and structure in woodland gardens and shady borders.

Growing Common Sword Fern

Grow Common Sword Fern in part shade and medium water. Mature plants reach 12 to 36 inches tall and spread 12 to 36 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Common Sword Fern takes more care to keep looking intentional in a front yard. Maintenance level: moderate. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Large size can appear overgrown without regular maintenance

Wildlife value

As a fern, it does not produce flowers or attract pollinators directly. However, it provides cover and nesting habitat for small birds and beneficial insects in shaded garden areas.

Common questions

Does Polystichum munitum flower?: No. Sword fern is a fern, so it reproduces by spores released from the undersides of its fronds rather than by producing flowers or seeds.
How much light does sword fern need?: Sword fern grows best in part shade to full shade, mimicking the filtered light of a conifer forest floor. It can handle part sun if the soil stays consistently moist.
How much water does sword fern need?: Give sword fern medium, consistent moisture, especially during dry summer months. Established plants can handle short dry spells but look best without extended drought.
Is sword fern evergreen or does it die back in winter?: Sword fern keeps its fronds year round, making it a reliable source of green structure in the garden through fall and winter.
Is Common Sword Fern toxic to livestock?: The USDA PLANTS Database does not flag Common Sword Fern as toxic to livestock.
Is Common Sword Fern HOA-friendly?: Common Sword Fern takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

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