Calocrater preussii Plant Care

Calocrater preussii (Calocrater preussii) belongs to the Apocynaceae family within the Calocrater genus. Calocrater preussii is native to central Africa.

Calocrater preussii displays a compact, bushy shrub growth habit, reaching up to 2 ft tall with a spread of approximately 2 ft. Calocrater preussii produces small, fragrant white flowers in clusters.

Leaf size: approximately 4 inches.

Water a young or newly planted Calocrater preussii 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.

Calocrater preussii thrives in bright indirect light. Avoid placing Calocrater preussii in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Calocrater preussii tolerates temperatures of 65–80°F. Calocrater preussii prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

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

Feed Calocrater preussii 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 bright indirect light and well-draining sandy loam with added organic matter for moisture retention. Avoid low spots where water collects after rain.

Calocrater preussii is suited to USDA Zone 11a – 12b.

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.

Calocrater preussii can spread to about 2 ft (0.6 m) and reach about 2 ft (1 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 Calocrater preussii 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.

Calocrater preussii is frost-tender (hardy to USDA zone 11). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Calocrater preussii can be propagated through seeds, stem cuttings.

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

Calocrater preussii 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.

Calocrater preussii grows outdoors in USDA Zone 11a – 12b. It survives winters down to planting zone 11a. Calocrater preussii is native to central Africa. In cooler regions, grow Calocrater preussii as a houseplant or bring it indoors before the first frost.