GardenWizzPlant Care Card

Fern

Dryopteris filix-mas · Fern

Hardiness
H7 Very hardy (to below −20°C)
Position
Full shade, Partial shade
Height × Spread
150 cm × —
Soil
moist but well-drained
Flowering
Toxicity
The rhizomes of D. filix-mas are toxic. Doses too big can cause serious poisoning, blindness and even death.

The Gardening Year

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🌱 Sow
🪴 Plant out

Watch out for

Sun scorch: Plant in partial shade and ensure consistent moisture during hot, dry spells.

Wind damage: Site the fern in a sheltered location protected from prevailing winds.

Slugs and snails: Use slug pellets, beer traps, or hand-pick pests at night to protect new growth.

Vine weevil: Apply nematodes in autumn or use systemic insecticides for potted specimens.

Fern rust: Improve air circulation and remove severely affected fronds to reduce spore spread.

Full guide: gardenwizz.com/plants/fern © GardenWizz — UK gardening encyclopedia