Wollomai Plant Care

Wollomai (Telopea aspera) belongs to the Proteaceae family within the Telopea genus. Wollomai is native to the New England region in New South Wales in Australia. Wollomai is also known as Waratah.

Wollomai displays a large shrub or small tree growth habit, reaching up to 10 ft tall with a spread of approximately 8 ft. Wollomai produces showy, large, colorful flowers in reds, pinks, or whites.

Leaf size: approximately 6 inches.

Water a young or newly planted Wollomai 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.

Wollomai thrives in full sun to partial shade.

Telopea aspera tolerates temperatures of 50–80°F. Wollomai prefers humidity levels of 40–70%.

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

Feed Wollomai every 8 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 acidic soil mix with added organic matter like compost or peat moss. Avoid low spots where water collects after rain.

Wollomai is suited to USDA Zone 12a.

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.

Wollomai can spread to about 8 ft (2.4 m) and reach about 10 ft (3 m) tall. Space plants about 8 ft (2.4 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 Wollomai 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.

Wollomai 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.

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

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Wollomai is susceptible to aphids, 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.

Wollomai grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Wollomai is native to the New England region in New South Wales in Australia. In cooler regions, grow Wollomai as a houseplant or bring it indoors before the first frost.