Crocodile Fern (Microsorum punctatum 'Grandiceps')

Crocodile Fern

Microsorum punctatum 'Grandiceps'

Its fronds ripple like crocodile skin, a quiet textural beauty. Evergreen epiphytic fern; common name: Crocodile Fern.

Partial sun
1–2/week
Beginner
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Plant Needs

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Sunlight Bright indirect light; avoid direct midday sun which can scorch fronds; tolerates low indoor light for short periods
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Watering Water when the top 2 cm of substrate feels dry; allow excess water to drain fully to prevent root rot
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Temperature Thrives in 18–25°C; avoid cold drafts and temperatures below 12°C which can damage fronds
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Characteristics

  • Fronds: Leathery, dark green, with raised bumpy veins resembling crocodile skin; arching lanceolate shape
  • Rhizomes: Creeping, hairy brown stems that anchor to surfaces for support
  • Sori: Small round yellowish spore clusters on undersides of mature fronds
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Care Guide

Watering

Keep substrate evenly moist but not waterlogged; mist fronds 2–3 times weekly to boost humidity

Fertilization

Diluted balanced liquid feed once every 6 weeks. Cease fertilization in winter when growth slows

Banana peel tea:Soak 1 fully ripe banana peel in 1L of water for 24 hours; dilute 1:10 before applying to soil; avoid direct contact with fronds to prevent staining
Pruning
  • Trim brown, dead frond tips with sharp sterile scissors to maintain appearance
  • Remove fully yellowed or damaged fronds at the base to redirect energy to healthy growth
  • Gently divide overcrowded rhizomes during spring repotting to propagate new plants
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirms non-toxic to cats; no poisoning risk from chewing or contact

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

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental foliage for indoor decor, terrariums, and shaded tropical garden beds