Goniothalamus laoticus Plant Care

Goniothalamus laoticus (Goniothalamus laoticus) belongs to the Annonaceae family within the Goniothalamus genus. Goniothalamus laoticus is native to Laos and Thailand.

Goniothalamus laoticus displays an upright, bushy tree growth habit, reaching up to 10 ft tall with a spread of approximately 5 ft. Goniothalamus laoticus produces small, fragrant flowers in shades of white, yellow, or green.

Leaf size: approximately 6 inches.

Water a young or newly planted Goniothalamus laoticus 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.

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

Goniothalamus laoticus tolerates temperatures of 65–80°F. Goniothalamus laoticus prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

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

Feed Goniothalamus laoticus 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 well-draining, acidic soil with high organic content. Avoid low spots where water collects after rain.

Goniothalamus laoticus is suited to USDA Zone 11a – 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.

Goniothalamus laoticus can spread to about 5 ft (1.5 m) and reach about 10 ft (3 m) tall. Space plants about 5 ft (1.5 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 Goniothalamus laoticus 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.

Goniothalamus laoticus 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.

Goniothalamus laoticus can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to amuyon plant care, which shares the same genus.

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

Goniothalamus laoticus is susceptible to aphids, scale insects, spider mites. 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.

Goniothalamus laoticus grows outdoors in USDA Zone 11a – 12b. It survives winters down to planting zone 11a. Goniothalamus laoticus is native to Laos and Thailand. In cooler regions, grow Goniothalamus laoticus as a houseplant or bring it indoors before the first frost.