Autumn Fern
The autumn fern flips the fern colour script - new fronds emerge coppery-bronze and pink before ageing to glossy green, giving a warm, changing display.
Last reviewed: October 2026
AI illustration Overview
The autumn fern flips the fern colour script - new fronds emerge coppery-bronze and pink before ageing to glossy green, giving a warm, changing display. Hardy, adaptable and happy indoors in bright shade or outdoors in a shady border. (Dryopteris erythrosora.)
Origin & Natural Habitat
East Asia (Japan, China), a hardy woodland fern grown worldwide in shade gardens and as a houseplant.
Appearance
Arching, semi-glossy fronds 40-60 cm; the standout is the coppery-bronze-to-pink flush of new growth, maturing to deep green.
Why People Grow It - Qualities & Benefits
- Coppery-pink new growth: rare fern colour
- Hardy and adaptable indoors or out
- Semi-evergreen and tough
- Not listed as toxic to cats or dogs
Care
Light: Bright indirect light indoors; part-to-full shade outdoors. No harsh sun.
Water: Keep evenly moist; established plants tolerate short dry spells better than delicate ferns.
Soil: Rich, moisture-retentive but well-draining mix or woodland soil.
Temperature & Humidity: Cool-tolerant (hardy outdoors in many zones); 10-24°C indoors, average humidity is fine.
Feeding: Half-strength feed monthly in spring-summer; garden plants need little.
Extra: The coppery new fronds are the whole point - best shown against green companions. A great crossover plant for a shady patio or a bright indoor corner.
Propagation
Divide the clump in spring.
Common Problems & Pests
Few - crisping only in dry, hot, sunny spots. A genuinely tough, colourful fern.
Toxicity & Safety
Not listed as toxic to cats and dogs, but some related Dryopteris ferns (such as the male fern) contain compounds that are harmful if eaten, so keep it out of reach of pets that chew plants.
Best Suited For
- Beginners and forgiving-fern seekers
- Pet households (kept out of chewing reach)
- Shade and bright-indirect spots
- Terrariums and humid rooms
FAQ
Why are the new fronds coppery?
New autumn-fern growth emerges bronze-pink and matures to green - a natural, seasonal colour show that gives the fern its name.
Indoors or in the garden?
Both - it's a hardy shade-garden fern that also grows well indoors in bright indirect light.
Gear for growing autumn fern
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