Narrow-leaved Helleborine (Cephalanthera longifolia)

Narrow-leaved Helleborine

Cephalanthera longifolia

Elegant white blooms rise above linear leaves, a quiet woodland gem. Evergreen terrestrial orchid; common name: Narrow-leaved Helleborine.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Dappled woodland shade; avoid direct midday sun to prevent leaf scorching
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Watering Keep soil consistently moist but not waterlogged; use rainwater or filtered water to avoid mineral buildup
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Temperature Hardy to -5°C; prefers cool temperate conditions, avoid prolonged temperatures above 28°C
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Characteristics

  • Leaf: Linear, grass-like, bright green, arranged in a basal rosette and along the upright stem
  • Flower: Star-shaped white blooms, 1–2 cm wide, borne in a loose terminal spike
  • Stem: Smooth, hairless green stem supporting the flower spike and upper leaves
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Care Guide

Watering

Keep soil evenly moist; mist foliage occasionally to mimic woodland humidity

Fertilization

Diluted balanced orchid fertilizer once monthly. Use a low-concentration fertilizer to avoid burning sensitive orchid roots

Banana peel compost tea:Compost banana peels fully to eliminate odor; dilute 1:20 with water for root drench to support healthy flowering
Pruning
  • Deadhead spent flower spikes after blooming to redirect energy to root growth
  • Remove yellowing basal leaves to maintain plant tidiness and reduce disease risk
  • Divide overcrowded clumps every 3–4 years in early spring to promote vigorous growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No listed toxicity to cats

Humans: No documented toxicity to humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental woodland plant for shaded garden beds