African Rosebay Plant Care

African Rosebay (Holarrhena floribunda) belongs to the Apocynaceae family within the Holarrhena genus. African Rosebay is also known as Conessi Bark.

African Rosebay displays an upright, medium-sized tree growth habit, reaching up to 15 ft tall with a spread of approximately 8 ft. African Rosebay produces small, fragrant white flowers in clusters.

Leaf size: approximately 6 inches.

Water a young or newly planted African Rosebay 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.

African Rosebay thrives in full sun to partial shade.

Holarrhena floribunda tolerates temperatures of 65–85°F. African Rosebay prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining loamy soil mix with added perlite for improved drainage. Good drainage is essential for African Rosebay to prevent waterlogging, which leads to root rot and fungal issues.

Feed African Rosebay every 6 months 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 to partial shade and well-draining loamy soil mix with added perlite for improved drainage. Avoid low spots where water collects after rain.

African Rosebay is suited to USDA Zone 13b.

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.

African Rosebay can spread to about 8 ft (2.4 m) and reach about 15 ft (5 m) tall. Space plants about 8 ft (2.4 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 African Rosebay 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.

African Rosebay is frost-tender (hardy to USDA zone 13). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

African Rosebay can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to holarrhena pubescens plant care, which shares the same genus.

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African Rosebay 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.

African Rosebay grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. In cooler regions, grow African Rosebay as a houseplant or bring it indoors before the first frost.