Conostephium magnum Plant Care

Conostephium magnum (Conostephium magnum) belongs to the Ericaceae family within the Conostephium genus. Conostephium magnum is native to the south-west of Western Australia.

Conostephium magnum displays a low spreading shrub growth habit, reaching up to 1.5 ft tall with a spread of approximately 2 ft. Conostephium magnum produces small bell-shaped flowers in shades of pink, white, or purple.

Leaf size: approximately 2.5 inches.

Water a young or newly planted Conostephium magnum every 5–7 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.

Conostephium magnum thrives in partial shade to full shade. The optimal light range is 100–500 lux. Avoid placing Conostephium magnum in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Conostephium magnum tolerates temperatures of 50–70°F. Conostephium magnum prefers humidity levels of 40–60%.

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

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

Conostephium magnum is suited to USDA Zone 12a.

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.

Conostephium magnum can spread to about 2 ft (0.6 m) and reach about 2 ft (0 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 Conostephium magnum 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.

Conostephium magnum 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.

Conostephium magnum can be propagated through seeds, cuttings. Similar propagation techniques also apply to conostephium plant care, which shares the same genus.

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Conostephium magnum is susceptible to spider mites, aphids, 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.

Conostephium magnum grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Conostephium magnum is native to the south-west of Western Australia. In cooler regions, grow Conostephium magnum as a houseplant or bring it indoors before the first frost.