Natal Plum Identification Guide

Key Identifying Features

Natal plum (Carissa macrocarpa) is a South African evergreen shrub grown in warm climates for its glossy foliage, fragrant white flowers, and red fruit. Two features stand out: distinctive forked (Y-shaped) spines on the stems and a milky white sap that bleeds from cut leaves and stems.

• Dense, mounding to sprawling evergreen shrub, 2–7 ft (some dwarf)
• Glossy, leathery, dark-green oval leaves
• Forked thorns along the branches
• Star-shaped white fragrant flowers, then red oval fruit

Leaves & Stems

Leaves are opposite, simple, oval to nearly round (1–3 in), thick, leathery, and glossy dark green with a small abrupt point at the tip. They're tough and waxy, well-suited to heat and salt. Stems bear the diagnostic stout, sharp, two-pronged (bifurcated) spines — an unusual forked shape that quickly confirms the plant. Cut any part and a white milky latex oozes out, a strong confirming trait shared with its dogbane-family relatives.

Flowers & Fruit

Flowers are white, waxy, 5-petaled, and star-shaped (1–2 in), with a sweet jasmine-like fragrance, appearing on and off much of the year in mild climates. They mature into oval to round red fruit (¾–2 in) that ripen from green through scarlet to deep crimson.

How to Tell It Apart from Look-Alikes

• True plums/cherries (Prunus): deciduous, no milky sap, no forked spines, and toothed leaves; natal plum is evergreen with entire leaves and Y-shaped thorns.
• Star jasmine (Trachelospermum): similar fragrant white star flowers and milky sap, but it's a vine with no spines or large fruit.
• Citrus: thorny and glossy, but single spines and citrus fruit/scent.
• Mock orange / Murraya: fragrant white flowers but no forked spines or red plum fruit.

The glossy opposite leaves + forked spines + milky sap + fragrant white star flowers + red plum-like fruit combination is unmistakable.

Where You'll Find It

A staple of warm coastal and subtropical landscapes (California, Florida, Mediterranean, South Africa, Australia) for hedges, barriers, foundation plantings, and ground covers. It's prized for salt and drought tolerance and the thorns make it a good security hedge. It needs frost-free conditions and full sun to part shade.

Quick ID Checklist

• Dense evergreen shrub, often coastal
• Glossy, leathery, dark-green oval opposite leaves
• Distinctive forked (Y-shaped) spines
• Milky white sap when cut
• Fragrant white star-shaped flowers
• Red, oval, plum-like fruit

If you find a glossy-leaved coastal hedge with forked thorns, milky sap, jasmine-scented white star flowers, and red fruit, it's natal plum.