Placospermum coriaceum Plant Care

Placospermum coriaceum (Placospermum coriaceum) belongs to the Proteaceae family within the Placospermum genus. Placospermum coriaceum is native to the rainforests of the wet tropics region of northeastern Queensland, Australia.

Placospermum coriaceum displays a compact, bushy shrub growth habit, reaching up to 3 ft tall with a spread of approximately 3 ft. Placospermum coriaceum produces showy clusters of pink, red, or white flowers.

Leaf size: approximately 6 inches.

Water a young or newly planted Placospermum coriaceum 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.

Placospermum coriaceum thrives in full sun to partial shade.

Placospermum coriaceum tolerates temperatures of 60–75°F. Placospermum coriaceum prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining acidic soil mix with added peat moss and pine bark. Good drainage is essential for Placospermum coriaceum to prevent waterlogging, which leads to root rot and fungal issues.

Feed Placospermum coriaceum 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 full sun to partial shade and well-draining acidic soil mix with added peat moss and pine bark. Avoid low spots where water collects after rain.

Placospermum coriaceum is suited to USDA Zone 13a.

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.

Placospermum coriaceum can spread to about 3 ft (0.9 m) and reach about 3 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 Placospermum coriaceum 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.

Placospermum coriaceum 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.

Placospermum coriaceum can be propagated through seeds, cuttings.

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

Placospermum coriaceum 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.

Placospermum coriaceum grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Placospermum coriaceum is native to the rainforests of the wet tropics region of northeastern Queensland, Australia. In cooler regions, grow Placospermum coriaceum as a houseplant or bring it indoors before the first frost.