Stemonoporus canaliculatus Plant Care

Stemonoporus canaliculatus (Stemonoporus canaliculatus) belongs to the Dipterocarpaceae family within the Stemonoporus genus. Stemonoporus canaliculatus is native to southwestern Sri Lanka.

Stemonoporus canaliculatus displays a tall canopy tree growth habit, reaching up to 50 ft tall with a spread of approximately 30 ft. Stemonoporus canaliculatus produces small white or cream-colored flowers in clusters.

Leaf size: approximately 6 inches.

Water a young or newly planted Stemonoporus canaliculatus 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.

Stemonoporus canaliculatus thrives in full sun to partial shade.

Stemonoporus canaliculatus tolerates temperatures of 65–85°F. Stemonoporus canaliculatus 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 Stemonoporus canaliculatus to prevent waterlogging, which leads to root rot and fungal issues.

Feed Stemonoporus canaliculatus 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 loamy soil with high organic content. Avoid low spots where water collects after rain.

Stemonoporus canaliculatus is suited to USDA Zone 13b.

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.

Stemonoporus canaliculatus can spread to about 30 ft (9.1 m) and reach about 50 ft (15 m) tall. Space plants about 30 ft (9.1 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 Stemonoporus canaliculatus 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.

Stemonoporus canaliculatus 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.

Stemonoporus canaliculatus can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to stemonoporus acuminatus plant care, which shares the same genus.

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

Stemonoporus canaliculatus is susceptible to scale insects, 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.

Stemonoporus canaliculatus grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Stemonoporus canaliculatus is native to southwestern Sri Lanka. In cooler regions, grow Stemonoporus canaliculatus as a houseplant or bring it indoors before the first frost.