Monoon harmandii Plant Care

Monoon harmandii (Monoon harmandii) belongs to the Annonaceae family within the Monoon genus. Monoon harmandii is native to Vietnam.

Monoon harmandii displays a small tree, spreading canopy growth habit, reaching up to 15 ft tall with a spread of approximately 10 ft. Monoon harmandii produces small, fragrant yellow flowers.

Leaf size: approximately 6 inches.

Water a young or newly planted Monoon harmandii every 7–10 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.

Monoon harmandii thrives in partial shade to full sun.

Monoon harmandii tolerates temperatures of 65–85°F. Monoon harmandii prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining, rich loamy soil with added perlite for improved drainage. Good drainage is essential for Monoon harmandii to prevent waterlogging, which leads to root rot and fungal issues.

Feed Monoon harmandii 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 well-draining, rich loamy soil with added perlite for improved drainage. Avoid low spots where water collects after rain.

Monoon harmandii 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.

Monoon harmandii can spread to about 10 ft (3 m) and reach about 15 ft (5 m) tall. Space plants about 10 ft (3 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 Monoon harmandii 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.

Monoon harmandii 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.

Monoon harmandii can be propagated through seeds, air layering. Similar propagation techniques also apply to monoon australe plant care, which shares the same genus.

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

Monoon harmandii is susceptible to spider mites, 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.

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