Shady Spikemoss (Selaginella umbrosa)

Shady Spikemoss

Selaginella umbrosa

It thrives in dim shade, a soft carpet of emerald green. Evergreen fern ally; common name: Shady Spikemoss.

Low light
2–3/week
Beginner
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Plant Needs

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Sunlight Prefers low to medium indirect light; avoid direct sunlight which scorches delicate foliage
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Watering Keep substrate consistently moist but not waterlogged; avoid allowing soil to dry out completely
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Temperature Thrives in cool, humid conditions; avoid temperatures below 10°C or above 28°C
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Characteristics

  • Leaf: Tiny, scale-like, overlapping leaves arranged in four distinct rows along creeping stems
  • Stem: Slender, branching, creeping stems that root at nodes to form dense mats
  • Sporangia: Small, cone-shaped strobili at stem tips bear reproductive spores
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Care Guide

Watering

Maintain consistent soil moisture; mist lightly to boost humidity

Fertilization

Diluted balanced liquid feed once every 2 months. Avoid over-fertilizing to prevent foliage burn

Banana peel compost tea:Use fully composted banana peels; dilute 1:20 with water for root drenching to avoid nutrient buildup
Pruning
  • Trim overgrown or straggly stems to maintain a compact mat shape
  • Remove brown, dried foliage to improve overall appearance and airflow
  • Thin dense mats occasionally to prevent fungal growth in humid conditions
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no adverse effects from ingestion or contact

Humans: No known toxicity to humans; safe for handling and contact

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Garden Uses & Culture

Culture: N/A

Usage: Terrarium ground cover, shaded garden ground cover, indoor foliage accent