Granite Diplolaena Plant Care

Granite Diplolaena (Diplolaena graniticola) belongs to the Rutaceae family within the Diplolaena genus. Granite Diplolaena is native to Western Australia. Granite Diplolaena is also known as Granite Yellow Correa.

Granite Diplolaena displays a compact, bushy shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Granite Diplolaena produces small white fragrant flowers in clusters.

Leaf size: approximately 4 inches.

Water a young or newly planted Granite Diplolaena 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.

Granite Diplolaena thrives in full sun to partial shade.

Diplolaena graniticola tolerates temperatures of 55–85°F. Granite Diplolaena prefers humidity levels of 40–70%.

Well-draining sandy loam with added organic matter. Good drainage is essential for Granite Diplolaena to prevent waterlogging, which leads to root rot and fungal issues.

Feed Granite Diplolaena 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 sandy loam with added organic matter. Avoid low spots where water collects after rain.

Granite Diplolaena is suited to USDA Zone 12b.

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.

Granite Diplolaena 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 Granite Diplolaena 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.

Granite Diplolaena 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.

Granite Diplolaena can be propagated through softwood cuttings, seeds. Similar propagation techniques also apply to andrews' diplolaena plant care, which shares the same genus.

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

Granite Diplolaena is susceptible to citrus whitefly, scale insects, citrus psyllid. 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.

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