Sebesten Plant Care

Sebesten (Cordia dichotoma) belongs to the Boraginaceae family within the Cordia genus. Sebesten is native to the Indomalayan realm, northern Australia, and western Melanesia. Sebesten is also known as Black Manjack, Geiger Tree, Wild Grape.

Sebesten displays a small to medium-sized tree growth habit, reaching up to 20 ft tall with a spread of approximately 15 ft. Sebesten produces small white or pink tubular flowers in clusters.

Leaf size: approximately 4 inches.

Water a young or newly planted Sebesten 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.

Sebesten thrives in full sun to partial shade.

Cordia dichotoma tolerates temperatures of 60–85°F. Sebesten prefers humidity levels of 40–70%.

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

Feed Sebesten 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.

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

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

Sebesten is suited to USDA Zone 10a – 12b.

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.

Sebesten can spread to about 15 ft (4.6 m) and reach about 20 ft (6 m) tall. Space plants about 15 ft (4.6 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.

Prune Sebesten 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.

Sebesten is frost-tender (hardy to USDA zone 10). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Sebesten can be propagated through seeds, cuttings. Similar propagation techniques also apply to african cordia plant care, which shares the same genus.

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

Sebesten is susceptible to aphids, spider mites, scale insects. 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.

Sebesten grows outdoors in USDA Zone 10a – 12b. It survives winters down to planting zone 10a. Sebesten is native to the Indomalayan realm, northern Australia, and western Melanesia. In cooler regions, grow Sebesten as a houseplant or bring it indoors before the first frost.