Maidenhair Fern (Adiantum raddianum)

Maidenhair Fern

Adiantum raddianum

Delicate fronds unfurl like lace, softening shaded corners. Evergreen fern; common name: Delta Maidenhair Fern.

Partial sun
2–3/week
Moderate
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Plant Needs

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Sunlight Bright indirect light; avoid direct midday sun which can scorch delicate fronds
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Watering Keep soil consistently moist but not waterlogged; avoid allowing the root ball to dry out completely
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Temperature Thrives in 18–22°C; avoid cold drafts and temperatures below 12°C which cause frond browning
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Characteristics

  • Frond: Delicate, fan-shaped leaflets on thin, black, wiry stalks
  • Spores: Sori located on the underside of leaflet margins
  • Habit: Clumping, low-growing herbaceous fern with arching fronds
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Care Guide

Watering

Keep soil evenly moist; mist fronds 2–3 times weekly to boost humidity

Fertilization

Diluted balanced liquid feed every 6 weeks. Avoid over-fertilizing, which can burn frond tips

Composted banana peel tea:Soak fully composted banana peels in water for 24 hours, dilute 1:20 for root drench; discard solids to prevent mold and odor
Pruning
  • Trim brown, damaged fronds at the base to encourage new growth
  • Remove dead fronds to improve airflow and reduce pest infestation risk
  • Divide overcrowded clumps in early spring to refresh plants and promote healthy growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic; no harmful effects for cats

Humans: Non-toxic to humans; no reported adverse effects from ingestion or contact

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental foliage for shaded indoor spaces, terrariums, and tropical shade gardens