Natal Plum (Carissa macrocarpa)

Natal Plum

Carissa macrocarpa

Glossy evergreen foliage frames starry white blooms. Ornamental shrub with edible ripe fruit; common name: Natal Plum.

Full sun
1–2/week
Beginner
🌱

Plant Needs

☀️
Sunlight Full sun to partial shade; tolerate coastal sunlight with protection from harsh midday rays for optimal flowering
💧
Watering Water deeply when the top 5 cm of soil dries out; avoid overwatering to prevent root rot
🌡️
Temperature Tolerates mild frosts down to 5°C; thrives in warm temperate to subtropical temperature ranges
🔍

Characteristics

  • Leaf: Opposite glossy dark green oval leaves, leathery texture with sharp spines at leaf axils
  • Flower: Fragrant star-shaped white blooms, 2–3 cm diameter, clustered at stem tips
  • Fruit: Oblong red drupe, 2–5 cm long, edible when fully ripe
🛠️

Care Guide

Watering

Keep soil consistently moist but not waterlogged; increase frequency during hot, dry spells

Fertilization

Diluted balanced fertilizer applied monthly. Discontinue fertilization in late autumn to support dormancy

Banana peel liquid fertilizer:Soak chopped banana peels in water for 3 days, dilute 1:10 with water for root drenching; avoid undiluted application to prevent root burn
Pruning
  • Wear thick gloves to avoid sharp spines during pruning
  • Trim after flowering to maintain hedge shape or desired shrub form
  • Remove dead, diseased, or overgrown branches to improve airflow
  • Thin dense growth to encourage better light penetration for fruiting
⚠️

Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic due to saponins; causes gastrointestinal upset and abdominal pain

Humans: Unripe fruit and leaves cause mild oral irritation; fully ripe fruit is safe for consumption

📖

Garden Uses & Culture

Culture: Symbolizes resilience due to drought tolerance and defensive spines

Usage: Ornamental hedge plant; ripe fruit used for jams, jellies, or fresh eating