Fragrant Premna Plant Care

Fragrant Premna (Premna odorata) belongs to the Lamiaceae family within the Premna genus. Fragrant Premna is native to the Indian subcontinent, Yunnan, Southeast Asia, New Guinea, and northern Australia, and naturalized in southern Florida. Fragrant Premna is also known as Sweet Scented Premna.

Fragrant Premna displays a compact, bushy shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Fragrant Premna produces small clusters of tiny white or pale pink flowers.

Leaf size: approximately 4 inches.

Water a young or newly planted Fragrant Premna 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.

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

Premna odorata tolerates temperatures of 65–80°F. Fragrant Premna 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 Fragrant Premna to prevent waterlogging, which leads to root rot and fungal issues.

Feed Fragrant Premna 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.

Fragrant Premna is suited to USDA Zone 13b.

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.

Fragrant Premna can spread to about 2 ft (0.6 m) and reach about 3 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 Fragrant Premna 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.

Fragrant Premna 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.

Fragrant Premna can be propagated through softwood cuttings, air layering. Similar propagation techniques also apply to premna acuminata plant care, which shares the same genus.

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

Fragrant Premna 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.

Fragrant Premna grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Fragrant Premna is native to the Indian subcontinent, Yunnan, Southeast Asia, New Guinea, and northern Australia, and naturalized in southern Florida. In cooler regions, grow Fragrant Premna as a houseplant or bring it indoors before the first frost.