Purple Orchid Tree (Bauhinia purpurea)

Purple Orchid Tree

Bauhinia purpurea

Its butterfly-shaped blooms paint gardens in soft purple, a tropical delight. Deciduous flowering tree; common name: Purple Orchid Tree.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; tolerate mild afternoon shade in hot tropical climates for reduced leaf scorch
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Watering Water deeply when the top 5 cm of soil dries out; avoid waterlogging to prevent root rot
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Temperature Thrives in 18–30°C; tolerate light short-term frost down to 10°C but avoid prolonged cold exposure
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Characteristics

  • Leaf: Bifoliate, butterfly-shaped glossy green blades, 7–12 cm wide
  • Flower: Fragrant orchid-like blooms with purple-pink petals, 8–10 cm across
  • Stem/Bark: Smooth grey-brown bark with a branching, open canopy
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Care Guide

Watering

Keep soil consistently moist but not saturated to support flowering growth

Fertilization

Apply a balanced slow-release fertilizer once at the start of growing season. Avoid high-nitrogen fertilizers to prevent excessive foliage growth at the expense of flowers

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 with water for root drenching to avoid nutrient burn
Pruning
  • Prune immediately after flowering to shape the canopy and remove dead or crossing branches
  • Thin crowded inner growth to improve airflow and light penetration for better bloom production
  • Remove low-growing suckers to maintain a neat tree form and redirect energy to upper canopy growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported adverse effects

Humans: No known toxicity to humans; flowers are edible in some cultural cuisines

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Garden Uses & Culture

Culture: Symbolizes beauty and resilience in tropical garden design; often planted as a street tree for ornamental shade

Usage: Ornamental landscape tree; young flowers are edible in some Southeast Asian dishes