Dirichletia obovata Plant Care

Dirichletia obovata (Dirichletia obovata) belongs to the Rubiaceae family within the Dirichletia genus. Dirichletia obovata is native to Socotra.

Dirichletia obovata displays a tall, upright shrub growth habit, reaching up to 5 ft tall with a spread of approximately 3 ft. Dirichletia obovata produces small, fragrant white flowers in clusters.

Leaf size: approximately 6 inches.

Water a young or newly planted Dirichletia obovata every 7–10 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.

Dirichletia obovata thrives in bright indirect light. Avoid placing Dirichletia obovata in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Dirichletia obovata tolerates temperatures of 65–80°F. Dirichletia obovata prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Rich, well-draining soil with high organic content. Good drainage is essential for Dirichletia obovata to prevent waterlogging, which leads to root rot and fungal issues.

Feed Dirichletia obovata 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 bright indirect light and rich, well-draining soil with high organic content. Avoid low spots where water collects after rain.

Dirichletia obovata is suited to USDA Zone 10b – 11b.

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.

Dirichletia obovata can spread to about 3 ft (0.9 m) and reach about 5 ft (2 m) tall. Space plants about 3 ft (0.9 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 Dirichletia obovata 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.

Dirichletia obovata 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.

Dirichletia obovata can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to dirichletia virgata plant care, which shares the same genus.

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

Dirichletia obovata 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.

Dirichletia obovata grows outdoors in USDA Zone 10b – 11b. It survives winters down to planting zone 10b. Dirichletia obovata is native to Socotra. In cooler regions, grow Dirichletia obovata as a houseplant or bring it indoors before the first frost.