Borneo Ironwood Plant Care

Borneo Ironwood (Vatica bantamensis) belongs to the Dipterocarpaceae family within the Vatica genus. Borneo Ironwood is native to Banten in Indonesia. Borneo Ironwood is also known as Borneo Teak.

Borneo Ironwood displays a tall canopy tree growth habit, reaching up to 100 ft tall with a spread of approximately 50 ft. Borneo Ironwood produces small, inconspicuous flowers.

Leaf size: approximately 6 inches.

Water a young or newly planted Borneo Ironwood 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.

Borneo Ironwood thrives in full sun to partial shade.

Vatica bantamensis tolerates temperatures of 65–85°F. Borneo Ironwood prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining loamy soil with high organic content. Good drainage is essential for Borneo Ironwood to prevent waterlogging, which leads to root rot and fungal issues.

Feed Borneo Ironwood every 8 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 loamy soil with high organic content. Avoid low spots where water collects after rain.

Borneo Ironwood is suited to USDA Zone 11b – 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.

Borneo Ironwood can spread to about 50 ft (15.2 m) and reach about 100 ft (30 m) tall. Space plants about 50 ft (15.2 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.

Prune Borneo Ironwood 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.

Borneo Ironwood is frost-tender (hardy to USDA zone 11). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Borneo Ironwood can be propagated through seeds, cuttings. Similar propagation techniques also apply to white meranti plant care, which shares the same genus.

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

Borneo Ironwood is susceptible to bark beetles, leaf miners, caterpillars. 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.

Borneo Ironwood grows outdoors in USDA Zone 11b – 12b. It survives winters down to planting zone 11b. Borneo Ironwood is native to Banten in Indonesia. In cooler regions, grow Borneo Ironwood as a houseplant or bring it indoors before the first frost.