Lacy Ground Fern (Microlepia speluncae)

Lacy Ground Fern

Microlepia speluncae

Delicate lacy fronds create soft, layered shade cover. Evergreen terrestrial fern; common name: Lacy Ground Fern.

Partial sun
2–3/week
Beginner
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Plant Needs

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Sunlight Prefers bright indirect light or dappled shade; avoid direct midday sun which can scorch fronds
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Watering Keep soil consistently moist but not waterlogged; avoid allowing the growing medium to dry out completely
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Temperature Thrives in warm, humid conditions; avoid temperatures below 10°C to prevent frond browning and damage
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Characteristics

  • Frond: Bipinnately compound lacy fronds, light to medium green, up to 1 m long
  • Rhizome: Creeping, scaly brown rhizomes that spread slowly
  • Sori: Small, round spore clusters on undersides of mature frond segments
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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 once monthly. Avoid over-fertilizing, which can cause frond tip burn

Banana peel compost tea:Use fully composted banana peels; dilute 1:25 with water for root drenching to avoid pest infestations and odor
Pruning
  • Trim brown, damaged fronds at the base to maintain a tidy appearance
  • Thin overcrowded clumps in early spring to improve airflow and encourage new growth
  • Remove spent fronds after spore release to redirect energy to new frond production
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No listed toxicity to cats

Humans: No known toxicity to humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental ground cover in shaded gardens; indoor terrarium or foliage plant