Heart Fern (Asplenium hemionitis)

Heart Fern

Asplenium hemionitis

Heart-shaped fronds bring soft, whimsical charm to shaded spaces. Evergreen fern; common name: Heart Fern.

Low light
2/week
Moderate
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Plant Needs

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Sunlight Bright indirect or filtered shade; direct midday sun will scorch delicate fronds
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Watering Keep soil consistently moist but not waterlogged; use room-temperature, chlorine-free water
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Temperature Thrives in warm, stable temperatures; avoid drafts and temperatures below 12°C
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Characteristics

  • Frond: Glossy, heart-shaped, leathery bright green fronds growing in tight clumps
  • Rhizome: Short, creeping rhizome covered in fine brown scales
  • Sori: Clustered spore-producing sori on the underside of mature fronds, near the midrib
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Care Guide

Watering

Maintain consistent soil moisture; mist fronds 2–3 times weekly to boost humidity

Fertilization

Diluted balanced feed every 4 weeks. Use half-strength liquid fertilizer to prevent frond burn

Banana peel compost tea:Fully compost banana peels, dilute 1:20 with water for root drenching; avoid raw peels to prevent mold growth
Pruning
  • Trim brown, damaged fronds at the base to improve airflow and appearance
  • Thin overcrowded clumps in spring to encourage new frond growth
  • Remove dead rhizome material during annual repotting to reduce disease risk
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-verified non-toxic; no harmful effects from ingestion or contact

Humans: No known toxic effects on humans from ingestion or contact

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental indoor foliage, closed terrarium plant, shaded garden groundcover in tropical regions