Belgrave's Aglaia Plant Care

Belgrave's Aglaia (Galbulimima belgraveana) belongs to the Himantandraceae family within the Galbulimima genus. Belgrave's Aglaia is native to northeastern Australia, Malaysia, and Papua New Guinea. Belgrave's Aglaia is also known as False Calaba Nut.

Belgrave's Aglaia displays a tall canopy tree growth habit, reaching up to 60 ft tall with a spread of approximately 30 ft. Belgrave's Aglaia produces small, inconspicuous flowers.

Leaf size: approximately 6 inches.

Water a young or newly planted Belgrave's Aglaia 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.

Belgrave's Aglaia thrives in partial to full shade. The optimal light range is 100–500 lux. Avoid placing Belgrave's Aglaia in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Galbulimima belgraveana tolerates temperatures of 65–85°F. Belgrave's Aglaia prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining, rich loamy soil with added organic matter. Good drainage is essential for Belgrave's Aglaia to prevent waterlogging, which leads to root rot and fungal issues.

Feed Belgrave's Aglaia 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 partial to full shade and well-draining, rich loamy soil with added organic matter. Avoid low spots where water collects after rain.

Belgrave's Aglaia 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.

Belgrave's Aglaia can spread to about 30 ft (9.1 m) and reach about 60 ft (18 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 Belgrave's Aglaia 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.

Belgrave's Aglaia 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.

Belgrave's Aglaia can be propagated through seeds, stem cuttings.

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

Belgrave's Aglaia is susceptible to scale insects, mealybugs. 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.

Belgrave's Aglaia grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Belgrave's Aglaia is native to northeastern Australia, Malaysia, and Papua New Guinea. In cooler regions, grow Belgrave's Aglaia as a houseplant or bring it indoors before the first frost.