Autumn Fern: Year-Round Color Despite the Name

Don't let the name fool you — autumn fern (Dryopteris erythrosora) isn't a one-season wonder. The first photo here was taken in late June; I cut coppery fronds for my daughter's August wedding bouquet; even in deep winter, young fronds glow with russet tones.

Available in 4-inch pots up to larger sizes, it's perfect for containers and transplants easily into the landscape when it outgrows its pot. It spreads slowly by rhizomes, never invasively. Easy care, evergreen, colorful, deer- and rabbit-resistant — this fern delivers.

Quick Facts

• Botanical name: Dryopteris erythrosora
• Common name: Autumn fern
• Origin: Japan, China, Korea, Taiwan
• Hardiness: -10°F (USDA zones 6–9); root hardy to zone 5 (not evergreen there)
• Water needs: Average, moisture-retentive soil
• Light: Brightest colors in dappled light; grows well in deeper shade
• Mature size: 2–3 feet tall and wide
• Benefits: Deer/rabbit resistant; low maintenance
• Seasonal interest: Year-round
• When to plant: Spring or fall

Distinguishing Traits

Evergreen with colorful foliage — new fronds emerge coppery, maturing to green, with older fronds retaining russet tones through winter. The open vase shape and manageable size make it versatile.

Landscape Uses

Perfect for woodland gardens under deciduous trees. Pair with bold foliage (hostas, rhododendrons) and fine textures (black mondo grass, Japanese forest grass). Softens stone walls and accents boulders beautifully.

Container Design

In this year-round container, a dwarf Japanese maple (Acer palmatum 'Mikawa Yatsubusa') stars with soft yellow spring foliage, fiery autumn color, and olive-green winter branches. Autumn fern's sunset tints are echoed by 'Paprika' coral bells, while 'Lime Rickey' coral bells, 'Silver Dragon' lilyturf, variegated periwinkle, black mondo grass, and 'Jacob' hellebore add creamy, chartreuse, and gray-green notes. All evergreen; sequential blooms keep it dynamic.

Planting Notes

Clip away oldest dark green fronds in spring as new growth emerges — purely aesthetic, not essential. Deer and rabbit resistance is based on observation; hungry animals may still browse, but in my garden rabbits ignore these while decimating herbaceous ferns, possibly because older fronds are too tough.