Vietnamese firebush Plant Care

Vietnamese firebush (Alchornea annamica) belongs to the Euphorbiaceae family within the Alchornea genus. Vietnamese firebush is native to Vietnam. Vietnamese firebush is also known as Annamica.

Vietnamese firebush displays an upright, bushy shrub growth habit, reaching up to 4 ft tall with a spread of approximately 3 ft. Vietnamese firebush produces small greenish flowers in clusters.

Leaf size: approximately 5 inches.

Water a young or newly planted Vietnamese firebush every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

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

Alchornea annamica tolerates temperatures of 65–80°F. Vietnamese firebush prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

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

Feed Vietnamese firebush every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs 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 soil mix with high organic content. Avoid low spots where water collects after rain.

Vietnamese firebush is suited to USDA Zone 13b.

Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.

Vietnamese firebush can spread to about 3 ft (0.9 m) and reach about 4 ft (1 m) tall. Space plants about 3 ft (0.9 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 plant spacing calculator.

Prune Vietnamese firebush 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 shrub in one year.

Vietnamese firebush 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.

Vietnamese firebush can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to heartleaf alchornea plant care, which shares the same genus.

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

Vietnamese firebush is susceptible to aphids, spider mites, scale insects. 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.

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