Oleander-leaf protea Plant Care

Oleander-leaf protea (Protea neriifolia) belongs to the Proteaceae family within the Protea genus. Oleander-leaf protea is native to South Africa. Oleander-leaf protea is also known as Narrow-leaved protea, Longleaf sugarbush.

Oleander-leaf protea displays an upright, bushy growth habit, reaching up to 6 ft tall with a spread of approximately 4 ft. Oleander-leaf protea produces stunning, large, bowl-shaped inflorescence with prominent, creamy-white to pale pink bracts surrounding a central cluster of dense, long, and vibrant pink to crimson-colored styles..

Leaf size: approximately 4 inches.

Water a young or newly planted Oleander-leaf protea 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.

Oleander-leaf protea thrives in full sun.

Protea neriifolia tolerates temperatures of 50–70°F. Oleander-leaf protea prefers humidity levels of 40–60%.

Well-draining sandy or loamy soil. Good drainage is essential for Oleander-leaf protea to prevent waterlogging, which leads to root rot and fungal issues.

Feed Oleander-leaf protea every month 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 and well-draining sandy or loamy soil. Avoid low spots where water collects after rain.

Oleander-leaf protea is suited to USDA Zone 9b – 11b.

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.

Oleander-leaf protea 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 Oleander-leaf protea 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.

Oleander-leaf protea is frost-tender (hardy to USDA zone 9). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Oleander-leaf protea can be propagated through stem cuttings or seeds. Similar propagation techniques also apply to brown-bearded protea plant care, which shares the same genus.

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

Oleander-leaf protea 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.

Oleander-leaf protea grows outdoors in USDA Zone 9b – 11b. It survives winters down to planting zone 9b. Oleander-leaf protea is native to South Africa. In cooler regions, grow Oleander-leaf protea as a houseplant or bring it indoors before the first frost.