Bell Bean Tree (Markhamia zanzibarica)

Bell Bean Tree

Markhamia zanzibarica

Its trumpet-shaped blooms glow like golden lanterns against glossy foliage. Evergreen flowering tree; common names: Bell Bean Tree, Zanzibar Bell Bean.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; tolerates mild afternoon shade in hot, arid climates to prevent leaf scorch
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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 warm temperate to tropical climates; protect from frost below 10°C to avoid leaf damage
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Characteristics

  • Leaf: Opposite, pinnately compound leaves with 5–9 elliptic leaflets; glossy dark green, leathery texture
  • Flower: Trumpet-shaped, bright golden-yellow blooms in dense terminal clusters; 5–7 cm long
  • Stem/Bark: Smooth grey-brown bark when young, developing shallow fissures with maturity
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Care Guide

Watering

Keep soil consistently moist during active growth periods

Fertilization

Apply balanced slow-release fertilizer once at the start of growth. Avoid over-fertilizing to prevent excessive foliage growth at the expense of flowers

Banana peel tea:Soak 2–3 chopped banana peels in 1L of water for 3 days; strain and use the liquid to water the base of the tree to support flower development
Pruning
  • Remove dead, damaged, or crossing branches in late winter to encourage healthy new growth
  • Thin overcrowded inner branches to improve air circulation and light penetration
  • Trim back spent flower clusters after blooming to maintain a tidy canopy shape
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA does not list this plant as toxic to cats

Humans: No known toxic effects to humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental shade tree for parks and large gardens; nectar source for bees and butterflies