Australian Red Cedar Plant Care

Australian Red Cedar (Toona ciliata) belongs to the Meliaceae family within the Toona genus. Australian Red Cedar is also known as Red Cedar, Scented Toon.

Australian Red Cedar displays a tall, upright tree growth habit, reaching up to 30 ft tall with a spread of approximately 15 ft. Australian Red Cedar produces small white flowers in large clusters.

Leaf size: approximately 6 inches.

Water a young or newly planted Australian Red Cedar 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.

Australian Red Cedar thrives in full sun to partial shade.

Toona ciliata tolerates temperatures of 60–85°F. Australian Red Cedar prefers humidity levels of 50–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining loamy soil with added organic matter. Good drainage is essential for Australian Red Cedar to prevent waterlogging, which leads to root rot and fungal issues.

Feed Australian Red Cedar 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 full sun to partial shade and well-draining loamy soil with added organic matter. Avoid low spots where water collects after rain.

Australian Red Cedar is suited to USDA Zone 13a.

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.

Australian Red Cedar 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 Australian Red Cedar 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.

Australian Red Cedar 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.

Australian Red Cedar can be propagated through seeds, hardwood cuttings. Similar propagation techniques also apply to calantas plant care, which shares the same genus.

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Australian Red Cedar is susceptible to 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.

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