Lobostemon cinereus Plant Care

Lobostemon cinereus (Lobostemon cinereus) belongs to the Boraginaceae family within the Lobostemon genus. Lobostemon cinereus is native to the Cape Provinces of South Africa.

Lobostemon cinereus displays a low spreading groundcover growth habit, reaching up to 0.5 ft tall with a spread of approximately 1.5 ft. Lobostemon cinereus produces small blue, pink, or white tubular flowers in clusters.

Leaf size: approximately 2 inches.

Water a young or newly planted Lobostemon cinereus 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.

Lobostemon cinereus thrives in full sun to partial shade.

Lobostemon cinereus tolerates temperatures of 50–80°F. Lobostemon cinereus prefers humidity levels of 40–70%.

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

Feed Lobostemon cinereus 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 for moisture retention. Avoid low spots where water collects after rain.

Lobostemon cinereus 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.

Lobostemon cinereus can spread to about 2 ft (0.5 m) and reach about 1 ft (0 m) tall. Space plants about 2 ft (0.5 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 Lobostemon cinereus 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.

Lobostemon cinereus 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.

Lobostemon cinereus can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to lobostemon argenteus plant care, which shares the same genus.

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

Lobostemon cinereus is susceptible to aphids, spider mites, whiteflies. 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.

Lobostemon cinereus grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Lobostemon cinereus is native to the Cape Provinces of South Africa. In cooler regions, grow Lobostemon cinereus as a houseplant or bring it indoors before the first frost.