Ceratostema rauhii Plant Care

Ceratostema rauhii (Ceratostema rauhii) belongs to the Ericaceae family within the Ceratostema genus. Ceratostema rauhii is native to Peru south east of Chiclayo at elevations around 2200 meters.

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

Leaf size: approximately 3 inches.

Water a young or newly planted Ceratostema rauhii every 4–7 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.

Ceratostema rauhii thrives in filtered sunlight or partial shade. Avoid placing Ceratostema rauhii in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Ceratostema rauhii tolerates temperatures of 50–75°F. Ceratostema rauhii prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

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

Feed Ceratostema rauhii 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 filtered sunlight or partial shade and well-draining acidic soil mix with peat moss and pine bark. Avoid low spots where water collects after rain.

Ceratostema rauhii is suited to USDA Zone 10a – 11b.

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.

Ceratostema rauhii 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 Ceratostema rauhii 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.

Ceratostema rauhii is frost-tender (hardy to USDA zone 10). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Ceratostema rauhii can be propagated through softwood cuttings, layering. Similar propagation techniques also apply to ceratostema alatum plant care, which shares the same genus.

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

Ceratostema rauhii 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.

Ceratostema rauhii grows outdoors in USDA Zone 10a – 11b. It survives winters down to planting zone 10a. Ceratostema rauhii is native to Peru south east of Chiclayo at elevations around 2200 meters. In cooler regions, grow Ceratostema rauhii as a houseplant or bring it indoors before the first frost.