Hong Kong Orchid Tree (Bauhinia blakeana)

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Sunlight Full sun to partial afternoon shade; full sun encourages maximum bloom production

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Watering Water deeply when the top 5–10 cm of soil dries out; avoid overwatering to prevent root rot

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Temperature Thrives in 18–30°C; tolerates light short-term frost but requires protection below 5°C

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Leaf: Bilobed, heart-shaped glossy dark green foliage, 10–15 cm wide with visible venation
Flower: Large, showy magenta-purple orchid-like blooms, 10–15 cm across, with no noticeable fragrance
Stem/Bark: Smooth grey-brown bark; branching, spreading canopy with drooping young twigs

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Watering

Keep soil evenly moist during active growth; supplement with deep watering in dry spells

Fertilization

Apply balanced slow-release fertilizer once at bud break. Avoid high-nitrogen fertilizers to prevent excessive foliage growth over blooms

Banana peel compost tea：Compost banana peels for 2–3 weeks, steep in water, dilute 1:20 for root drench to enhance bloom production

Pruning

Prune immediately after flowering to remove dead wood and shape the spreading canopy
Thin crowded inner branches to improve airflow and reduce fungal disease risk
Remove suckers from the base to direct energy to the main tree canopy

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Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-verified non-toxic; no adverse effects from ingestion or contact

Humans: No known toxic effects on humans; non-irritating to skin or mouth

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Culture: Official floral emblem of Hong Kong; symbolizes resilience and urban beauty

Usage: Ornamental shade tree for urban landscapes, parks, and residential gardens