Palaquium rioense Plant Care

Palaquium rioense (Palaquium rioense) belongs to the Sapotaceae family within the Palaquium genus.

Palaquium rioense displays a tall, evergreen tree growth habit, reaching up to 30 ft tall with a spread of approximately 15 ft. Palaquium rioense produces small, inconspicuous flowers in clusters.

Leaf size: approximately 6 inches.

Water a young or newly planted Palaquium rioense 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.

Palaquium rioense thrives in partial to full sun.

Palaquium rioense tolerates temperatures of 65–85°F. Palaquium rioense prefers humidity levels of 50–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining, rich loamy soil with added organic matter for moisture retention. Good drainage is essential for Palaquium rioense to prevent waterlogging, which leads to root rot and fungal issues.

Feed Palaquium rioense 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 partial to full sun and well-draining, rich loamy soil with added organic matter for moisture retention. Avoid low spots where water collects after rain.

Palaquium rioense 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.

Palaquium rioense can spread to about 15 ft (4.6 m) and reach about 30 ft (9 m) tall. Space plants about 15 ft (4.6 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 Palaquium rioense 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.

Palaquium rioense 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.

Palaquium rioense can be propagated through seeds, air layering, grafting. Similar propagation techniques also apply to nyatoh plant care, which shares the same genus.

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

Palaquium rioense is susceptible to scale insects, mealybugs, 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.

Palaquium rioense grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. In cooler regions, grow Palaquium rioense as a houseplant or bring it indoors before the first frost.