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Photo: Rotational, Public domain (via Wikimedia Commons)

Wild Plum

Harpephyllum caffrum

Also known as South African Plum, Cape Plum, Umgwenya (Zulu), Bosploom (Afrikaans)

At a glance
Family
Anacardiaceae (cashew family)
Type
Evergreen tree
Parts used
Fruit, bark (traditional use)
Size
10 to 20 meters tall (33 to 65 feet), sometimes more in forest settings
Bloom
Small greenish white flowers in loose sprays, late winter into spring
Habitat
Coastal and riverine forest, scrub, and rocky hillsides from the Eastern Cape of South Africa north through Mozambique and East Africa
Acquisition
Grow or buy
This plant in HerbSense

Key benefits

Rich in vitamin C
Prized for jams and jellies
Feeds garden birdlife
Traditionally used for skin

Traditional uses

Long before it found its way into suburban gardens, the wild plum was a forest tree that fed people, cattle, and birds alike along the coast of southern Africa. Zulu and Xhosa communities gathered the tart, plum-red fruit each summer to eat fresh or ferment into a mild traditional beer, while the bark was steeped and applied as a wash for skin complaints and taken in small amounts to settle the stomach. Colonial-era settlers adopted the fruit for jams and jellies, giving it the common name it carries today even though it is no relation to the true plums of Europe. It remains a tree woven into both kitchen tradition and folk practice across its native range.

How to grow & use it

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Traditional remedies and step-by-step preparations, a complete growing guide, and how to harvest, dry, and store it, all unlocked with HerbLens Unlimited.

  • Remedies & preparations
  • Growing guide
  • Harvest & storage
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Pairs well with
  • Rooibos
  • Ginger
  • Cinnamon
Substitutes
  • Sumac (for tartness)
  • Hibiscus (roselle)
Choose it when

For the garden that wants to feed both the table and the birds outside the window.

Did you know?

Despite its name, the wild plum is not a plum at all. True plums belong to the rose family, while Harpephyllum caffrum is actually a cousin of the mango and cashew, and every winter its bright red fruit draws flocks of hungry fruit eating birds, including the striking African green pigeon.

Safety

Wild plum belongs to the same plant family as mango, cashew, and poison ivy, and its sap and bark can cause skin irritation or an allergic reaction in people sensitive to that family. Unripe fruit is quite astringent and can upset a sensitive stomach if eaten in quantity.