Rohutu Plant Care

Rohutu (Lophomyrtus obcordata) belongs to the Myrtaceae family within the Lophomyrtus genus. Rohutu is native to lowland forest. Rohutu is also known as New Zealand Myrtle.

Rohutu displays a compact, bushy shrub growth habit, reaching up to 4 ft tall with a spread of approximately 3 ft. Rohutu produces small white flowers in clusters.

Leaf size: approximately 2 inches.

Water a young or newly planted Rohutu every 7–14 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.

Rohutu thrives in partial to full sun.

Lophomyrtus obcordata tolerates temperatures of 50–80°F. Rohutu prefers humidity levels of 40–70%.

Well-draining acidic soil with added organic matter like peat moss. Good drainage is essential for Rohutu to prevent waterlogging, which leads to root rot and fungal issues.

Feed Rohutu 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 partial to full sun and well-draining acidic soil with added organic matter like peat moss. Avoid low spots where water collects after rain.

Rohutu is suited to USDA Zone 12a.

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.

Rohutu 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 Rohutu 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.

Rohutu is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Rohutu can be propagated through softwood cuttings, seeds. Similar propagation techniques also apply to rimu plant care, which shares the same genus.

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

Rohutu is susceptible to aphids, scale insects, caterpillars. 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.

Rohutu grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Rohutu is native to lowland forest. In cooler regions, grow Rohutu as a houseplant or bring it indoors before the first frost.