Nun's Orchid (Phaius tancarvilleae)

Nun's Orchid

Phaius tancarvilleae

Tall, stately blooms carry the quiet elegance of a nun’s veil. Deciduous terrestrial orchid; common name: Nun's Orchid.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Bright indirect light; avoid direct midday sun which can scorch delicate leaves
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Watering Water thoroughly when the top 2–3 cm of soil dries out; avoid waterlogging pseudobulbs to prevent rot
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Temperature Thrives at 18–25°C; tolerate brief drops to 10°C but avoid frost exposure
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Characteristics

  • Leaf: Large, lanceolate, glossy green leaves up to 60 cm long, arranged in basal rosettes
  • Flower: Showy 7–10 cm wide blooms; pale pink to white petals with a deep purple, ruffled lip
  • Stem: Thick, fleshy pseudobulbs that store water and nutrients for dry periods
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Care Guide

Watering

Keep substrate consistently moist but not waterlogged

Fertilization

Diluted balanced orchid fertilizer every 2 weeks. Cease fertilization in autumn and winter when growth slows

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 for root drench to support bloom development
Pruning
  • Cut spent flower spikes at the base to redirect energy to pseudobulb growth
  • Trim yellowing or damaged leaves at the base to prevent fungal infection
  • Divide overcrowded clumps during spring repotting to improve plant health
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

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

Humans: No known toxic compounds; safe for human handling and accidental small ingestion

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Garden Uses & Culture

Culture: Symbolizes elegance and devotion in traditional Southeast Asian floral practices

Usage: Ornamental cut flower; potted indoor specimen; garden planting in warm, humid climates