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Natal Orange – Zimbabwe Monkey Orange

Strychnos spinosa

The Natal Orange tree, from Zimbabwe (spiny monkey orange), produces attractive orange-coloured fruits with a pleasantly sweet, tangy flavor. Only ripe fruit is safe to eat. The fruit is completely different from a regular orange.
The plant, taken alone or in conjunction with extracts of other plants, is used by the Tiv people of Nigeria to treat snakebite and venereal disease, increase breast milk flow in lactating mothers, and enhance physical strength.
Warm subtropical to tropical climates are preferred, as the tree thrives in temperatures between 18°C and 30°C.
Young trees are frost-sensitive. Mature trees can tolerate very light, brief frosts, but prolonged or severe frosts will damage foliage and reduce fruit production.

Please note that our imported tropical plants may arrive smaller in size than expected. This is completely normal, as young plants are shipped to ensure they travel safely and establish well in their new environment. With proper care, warmth, and growing conditions, they will develop quickly and grow into strong, healthy, mature plants.

Scroll down for the Growing information:

Position
Plant in full sun for the best growth and fruit production. It will tolerate light shade but fruits more heavily in a sunny position.
Moderate wind tolerance, but protection from strong, drying winds is beneficial, especially while the tree is young.
Size
Grows 4–8 m high and 3–5 m wide, depending on growing conditions and pruning.
Soil Type
Prefers fertile, well-drained soil enriched with organic matter. Best grown in slightly acidic to neutral soil (pH 6.0–7.0).

Adding half a bag of our Volcanic Rock Dust (R25 per bag) and a bag of Superfrass (R25 per bag) will assist in rapid growth. They also protect the roots from insect damage.

Watering
Water regularly while the tree is establishing. Mature trees are moderately drought-tolerant but produce better crops when watered deeply during extended dry periods.
Mulch
Add a thick layer of pine bark mulch, which helps retain soil moisture and suppresses weeds. Do not let the mulch touch the plant stem, as it may cause infection or rot.
Fertilising
Apply a small amount of well-rotted manure annually to encourage healthy growth and fruit production. Apply 1 teaspoon of our slow-release All-plant fertiliser every 4 months. The roots will absorb what they need.
Pruning
Prune lightly after harvesting to remove dead, damaged, or overcrowded branches and to maintain a manageable shape. Remove any suckers from the base.
Harvesting
Fruit is harvested when fully coloured and slightly soft, depending on the local growing season. Ripe fruit is best picked by hand.

Pests & Diseases

Generally hardy but may occasionally be affected by aphids, scale insects, mealybugs, caterpillars, and fruit flies. Good air circulation and well-drained soil help prevent fungal diseases and root rot.
Preferably use preventative measures by spraying agricultural Neem Oil or Effective Microorganisms (EM Control).
Spray every week, then every second week, and eventually once a month. Respray after rain.
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