Olive Hakea Plant Care

Olive Hakea (Hakea oleifolia) belongs to the Proteaceae family within the Hakea genus. Olive Hakea is native to an area along the south coast in the South West and Great Southern regions of Western Australia. Olive Hakea is also known as Grey Hakea.

Olive Hakea displays an upright, bushy shrub growth habit, reaching up to 6 ft tall with a spread of approximately 4 ft. Olive Hakea produces showy clusters of small, colorful flowers.

Leaf size: approximately 4 inches.

Water a young or newly planted Olive Hakea 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.

Olive Hakea thrives in full sun to partial shade.

Hakea oleifolia tolerates temperatures of 50–85°F. Olive Hakea prefers humidity levels of 40–70%.

Well-draining sandy soil with added organic matter for moisture retention. Good drainage is essential for Olive Hakea to prevent waterlogging, which leads to root rot and fungal issues.

Feed Olive Hakea 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 sandy soil with added organic matter for moisture retention. Avoid low spots where water collects after rain.

Olive Hakea 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.

Olive Hakea can spread to about 4 ft (1.2 m) and reach about 6 ft (2 m) tall. Space plants about 4 ft (1.2 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 Olive Hakea 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.

Olive Hakea 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.

Olive Hakea can be propagated through seeds, cuttings. Similar propagation techniques also apply to coastal hakea plant care, which shares the same genus.

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Olive Hakea is susceptible to aphids, 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.

Olive Hakea grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Olive Hakea is native to an area along the south coast in the South West and Great Southern regions of Western Australia. In cooler regions, grow Olive Hakea as a houseplant or bring it indoors before the first frost.