Deer Fern (Blechnum spicant)

Deer Fern

Blechnum spicant

Its fronds split into two forms, a quiet evergreen groundcover. Evergreen fern; common name: deer fern.

Low light
1–2/week
Beginner
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Plant Needs

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Sunlight Dappled shade to full shade; tolerates brief morning sun but avoids hot midday direct light
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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 Hardy to -10°C; prefers cool, humid conditions and avoids extreme heat above 28°C
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Characteristics

  • Fronds: Dimorphic; sterile fronds are broad, arching, evergreen; fertile fronds are upright, narrow, with spore-bearing sori on undersides
  • Rhizome: Short, creeping, scaly underground stem
  • Habit: Dense, low-growing clumping groundcover
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Care Guide

Watering

Keep soil evenly moist; mist fronds to boost ambient humidity

Fertilization

Diluted organic feed once every 2 months. Use low-nitrogen organic feed to avoid burning delicate fronds

Composted leaf mold tea:Steep fully decomposed leaf mold in water for 24 hours; dilute 1:20 for root drench to add humus without risking mold growth
Pruning
  • Remove brown, dead fronds at the base to maintain a tidy appearance
  • Thin overcrowded clumps in early spring to improve airflow and reduce disease risk
  • Trim damaged fronds as needed to prevent spread of fungal issues
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxicity to humans

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Garden Uses & Culture

Culture: N/A

Usage: Shaded woodland groundcover, ornamental indoor foliage