Natal Plum (Carissa bispinosa)

Photo: desertnaturalistCC BY 4.0via iNaturalistresized / cropped

Natal Plum Plant Care

Carissa bispinosa Desf.

Updated · Sources · How we source care data

Carissa bispinosa, also known as the conkerberry plant, stands out with its shiny dark green leaves and fragrant white flowers that bloom in clusters. This drought-resistant shrub is popular for its edible red berries and is a favorite among wildlife enthusiasts for attracting birds and butterflies.

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Water

Every 7–14 days

Light

Full sun to partial shade

Temp

60–85°F

Humidity

40–70%

At a glance

How do you care for Natal Plum?

Plant Natal Plum in full sun to partial shade (USDA zones 13a) and water a young tree every 7–14 days until it is established. It tolerates temperatures of 60–85°F (16–29°C). Fertilize it every 6 months during the growing season. It is reported as toxic to pets, so keep it out of reach of pets.

What Is the Natal Plum?

Natal Plum (Carissa bispinosa) belongs to the Apocynaceae family within the Carissa genus. Natal Plum is native to Australia, Indonesia, Papua New Guinea. Natal Plum is also known as Twin-thorn Carissa, Bushman's-currant.

Natal Plum displays an upright, dense shrub growth habit, reaching up to 6 ft tall with a spread of approximately 4 ft. Natal Plum produces small, star-shaped white flowers with a sweet fragrance.

Leaf size: approximately 3 inches.

How Often Should You Water a Natal Plum?

Water a young or newly planted Natal Plum every 7–14 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established trees mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Watering Frequency

Every 7–14 days

Until established; then in dry spells

What Light Does the Natal Plum Need?

Natal Plum thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Natal Plum Prefer?

Carissa bispinosa tolerates temperatures of 60–85°F. Natal Plum prefers humidity levels of 40–70%.

Temperature

60–85°F

Humidity

40–70%

What Soil Mix Works Best for a Natal Plum?

Well-draining sandy loam with added organic matter for moisture retention. Good drainage is essential for Natal Plum to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Natal Plum?

Feed Natal Plum every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established trees in good soil often need little extra feeding, so let weak growth or pale foliage guide you.

Stop feeding by late summer so new growth can harden before winter.

Fertilizing

Every 6 months

During the growing season

The PlantoScan app can remind you when to water and when to fertilize each plant.

Where Should You Plant a Natal Plum?

Choose a spot with full sun to partial shade and well-draining sandy loam with added organic matter for moisture retention. Avoid low spots where water collects after rain.

Natal Plum is suited to USDA Zone 13a.

Plant container-grown or balled-and-burlapped trees in spring or early autumn, setting the root flare at soil level, and water well after planting.

How Far Apart Should You Plant a Natal Plum?

Natal Plum can spread to about 4 ft (1.2 m) and reach about 6 ft (2 m) tall. Space plants about 4 ft (1.2 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.

Planning a row or hedge? Try the tree spacing calculator.

How Do You Prune a Natal Plum?

Prune Natal Plum while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.

If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the tree in one year.

How Do You Care for a Natal Plum in Winter?

Natal Plum is frost-tender (hardy to USDA zone 13). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

How Do You Propagate a Natal Plum?

Natal Plum can be propagated through seeds, semi-hardwood cuttings. Similar propagation techniques also apply to natal plum plant care, which shares the same genus.

Is the Natal Plum Toxic to Pets and Children?

Toxic (caution)

Reported as toxic in our plant data. Not verified by the ASPCA.

Mildly toxic if ingested, can cause skin irritation

This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.

See all plants toxic to cats and plants toxic to dogs.

What Pests and Diseases Affect the Natal Plum?

Natal Plum is susceptible to aphids, scale insects, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

What USDA Hardiness Zone Does the Natal Plum Need?

Natal Plum grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Natal Plum is native to Australia, Indonesia, Papua New Guinea. In cooler regions, grow Natal Plum as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 13a

Keep exploring plants

Natal Plum is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Carissa genus — compare its care with other Carissa species on PlantoScan.

Carissa is part of the Apocynaceae plant family — browse all Apocynaceae genera and species.

Natal Plum thrives in bright light and direct sun — see other bright-light plants.

Related Plant Care Guides

Closely related plants with similar care requirements:

Sources

  • Scientific name & taxonomy: Carissa bispinosa Desf., family Apocynaceae (first published in Mem. New York Bot. Gard. 8: 502 (1954)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Natal Plum is reported as toxic to pets in our plant data (not verified by the ASPCA), so treat it with caution. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
  • Photo: desertnaturalist, CC BY 4.0, iNaturalist — original.
  • Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
  • Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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