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Deer Fern

Struthiopteris spicant

Also listed as Blechnum spicant, Lomaria spicant

Also known as Hard Fern

herbaceous⛅ part shade💧💧 moderate water❄ Hardy: Zone 3a – Zone 8b

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A delicate evergreen fern with two distinct frond types: sterile spreading fronds and fertile upright fronds with spore-bearing pinnae. It thrives in shaded woodland settings with consistent moisture.

Why grow it

Deer fern offers a distinctly architectural form compared to most woodland ferns, with its dimorphic fronds (sterile and fertile) creating visual texture even in low light. It performs well as a groundcover in consistently moist, shaded sites where many ornamental ferns struggle, and its evergreen habit provides winter structure. The compact, spreading habit makes it useful for erosion control on shaded slopes or stream banks without aggressive lateral spread.

Watch out for

Deer fern prefers consistently moist soil and may decline during prolonged dry spells, even in shade. Transplants can be slow to establish, so allow extra time before judging success. Slugs and snails may browse new fronds in very wet conditions, so monitor in poorly drained sites.

Overview

Form
Upright
Growth Rate
moderate
Size
1–2.5′ tall × 1–2′ wide
Dormancy
evergreen
Family
Blechnaceae
Erosion control

Native to the United States

Native Range

Western North America, Europe, and Asia

Native to: Alaska, California, Idaho, Oregon, Washington

Seasonality

Season of Interest

SpringSummerFallWinter

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Companion Planting

Plants well with