Allantoma kuhlmannii Plant Care

Allantoma kuhlmannii (Allantoma kuhlmannii) belongs to the Lecythidaceae family within the Allantoma genus.

Allantoma kuhlmannii displays a tall tree, spreading canopy growth habit, reaching up to 30 ft tall with a spread of approximately 20 ft. Allantoma kuhlmannii produces large showy white flowers with prominent stamens.

Leaf size: approximately 12 inches.

Water a young or newly planted Allantoma kuhlmannii 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.

Allantoma kuhlmannii thrives in partial shade to full sun.

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

Rich, well-draining soil with high organic content. Good drainage is essential for Allantoma kuhlmannii to prevent waterlogging, which leads to root rot and fungal issues.

Feed Allantoma kuhlmannii 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 shade to full sun and rich, well-draining soil with high organic content. Avoid low spots where water collects after rain.

Allantoma kuhlmannii 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.

Allantoma kuhlmannii can spread to about 20 ft (6.1 m) and reach about 30 ft (9 m) tall. Space plants about 20 ft (6.1 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 Allantoma kuhlmannii 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.

Allantoma kuhlmannii 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.

Allantoma kuhlmannii can be propagated through seeds, air layering. Similar propagation techniques also apply to allantoma integrifolia plant care, which shares the same genus.

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

Allantoma kuhlmannii 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.

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