Cossinia australiana Plant Care

Cossinia australiana (Cossinia australiana) belongs to the Sapindaceae family within the Cossinia genus. Cossinia australiana is native to restricted areas of Queensland, Australia, and constituting part of the plant family Sapindaceae.

Cossinia australiana displays a compact, bushy shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Cossinia australiana produces small clusters of white or pink flowers.

Leaf size: approximately 4 inches.

Water a young or newly planted Cossinia australiana 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.

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

Cossinia australiana tolerates temperatures of 65–75°F. Cossinia australiana prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining loamy soil with added organic matter like compost. Good drainage is essential for Cossinia australiana to prevent waterlogging, which leads to root rot and fungal issues.

Feed Cossinia australiana 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 loamy soil with added organic matter like compost. Avoid low spots where water collects after rain.

Cossinia australiana 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.

Cossinia australiana can spread to about 2 ft (0.6 m) and reach about 3 ft (1 m) tall. Space plants about 2 ft (0.6 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 plant spacing calculator.

Prune Cossinia australiana 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.

Cossinia australiana 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.

Cossinia australiana can be propagated through seeds, stem cuttings.

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

Cossinia australiana is susceptible to aphids, scale insects, spider mites. 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.

Cossinia australiana grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Cossinia australiana is native to restricted areas of Queensland, Australia, and constituting part of the plant family Sapindaceae. In cooler regions, grow Cossinia australiana as a houseplant or bring it indoors before the first frost.