Monkey Orange (Strychnos pungens)

Monkey Orange

Strychnos pungens

Admired for its robust presence in African woodlands. Evergreen thorny tree bearing large spiny fruits known as monkey oranges; valued for its ecological role and striking form.

Full sun
1/week
Moderate
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Plant Needs

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Sunlight Prefers full sun for optimal growth
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Watering Tolerates drought once established, moderate watering in cultivation
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Temperature Thrives in warm subtropical to tropical climates; not frost-tolerant
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Characteristics

  • Leaves: Simple, opposite, broadly elliptic to nearly circular, 5–10 cm long, leathery texture, shiny dark green above, paler beneath, veins prominent;
  • Flowers: Small, greenish-white, fragrant, borne in axillary clusters;
  • Fruit: Large, spherical, woody shell densely covered in hard spines, containing edible orange pulp;
  • Bark: Grey-brown, rough, with vertical fissures.
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Care Guide

Watering

Water weekly during establishment, less once mature

Fertilization

Light application of compost or organic fertilizer at start of spring. Prefers low-input feeding; excess nitrogen may reduce fruiting

Composted banana peel:Dry and crush peels, mix into topsoil to promote flowering and fruit development; avoid attracting pests by fully composting
Pruning
  • Remove dead or diseased branches promptly;
  • Light structural pruning in late winter;
  • Thin dense growth to improve air flow;
  • Maintain single main stem if desired for form;
  • Wear gloves to avoid injury from thorny branches
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: Toxic; ingestion may cause severe neurological symptoms and can be fatal (per ASPCA analogues of genus)

Humans: All parts except ripe fruit pulp contain toxic alkaloids including strychnine; ingestion of seeds or unripe fruit may be fatal

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Garden Uses & Culture

Culture: Known in parts of southern Africa for its ecological role in feeding wildlife such as vervet monkeys; minimal presence in Western cultural symbolism

Usage: - Edible ripe fruit pulp used locally; - Wood used for tool handles; - Ornamental in large gardens; - Supports local wildlife