Marginal wood fern (Dryopteris marginalis) is a dependable, long-lived fern that gives your shade garden structure in every season. Its leathery fronds rise in a neat, vase-shaped clump and hold color well, providing a calm evergreen backdrop for spring ephemerals and summer perennials. If you know this plant as Marginal Wood Fern, that common name fits its look: the spore clusters are set near the leaflet margins, and the fronds have a strong, shield-fern texture.

Give it the woodland conditions it naturally prefers. Plant it in part shade to full shade, ideally with dappled light or deep shade under open tree canopies. Aim for humus-rich soil that drains well but stays evenly moist. A leaf-mold or compost mulch helps keep roots cool, improves soil structure, and reduces summer drying. Once established, it is generally low maintenance and well behaved, staying in a clump rather than running aggressively.

Mature size is typically about 18-24 inches tall, with a proportionate spread (often around 2 feet). Use it to edge shaded paths, fill gaps between larger shrubs, or repeat in drifts to create a unified, natural look. The fronds also pair nicely with spring bulbs, native woodland flowers, and other shade-loving ferns for a layered planting that looks intentional without constant trimming.

Seasonal care is simple. Remove any winter-tattered fronds in late winter or very early spring before new fiddleheads unfurl, and keep the crown clear of heavy debris. While browsing varies by location, this fern is often less appealing to deer and rabbits than many tender shade plants, making it a strong choice where browsing pressure is a concern.

Specifications

• Cold hardiness zone: 4-8 (-30 degrees F) - Contact your local extension to confirm hardiness if you are in a fringe zone (we cannot guarantee hardiness in fringe zones)
• Light: Part sun   Shade
• Growth rate: Moderate
• Mature height: 18-24"
• Spread: 24-30"
• Tolerant of: Deer, Rabbits
• Evergreen: Yes
• Native to the U.S.: Yes

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