Keiske Leucothoe Plant Care

Keiske Leucothoe (Leucothoe keiskei) belongs to the Ericaceae family within the Leucothoe genus. Keiske Leucothoe is native to southern Honshu, Japan. Keiske Leucothoe is also known as Japanese Leucothoe.

Keiske Leucothoe displays a low, spreading shrub growth habit, reaching up to 3 ft tall with a spread of approximately 4 ft. Keiske Leucothoe produces small, urn-shaped white or pink flowers in drooping clusters.

Leaf size: approximately 3 inches.

Water a young or newly planted Keiske Leucothoe 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.

Keiske Leucothoe thrives in partial to full shade. The optimal light range is 100–500 lux. Avoid placing Keiske Leucothoe in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Leucothoe keiskei tolerates temperatures of 40–70°F. Keiske Leucothoe prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Moist, acidic, well-draining soil with high organic content such as peat moss and pine bark. Good drainage is essential for Keiske Leucothoe to prevent waterlogging, which leads to root rot and fungal issues.

Feed Keiske Leucothoe 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 partial to full shade and moist, acidic, well-draining soil with high organic content such as peat moss and pine bark. Avoid low spots where water collects after rain.

Keiske Leucothoe is suited to USDA Zone 11a.

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.

Keiske Leucothoe can spread to about 4 ft (1.2 m) and reach about 3 ft (1 m) tall. Space plants about 4 ft (1.2 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 Keiske Leucothoe 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.

Keiske Leucothoe 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.

Keiske Leucothoe can be propagated through softwood cuttings, layering. Similar propagation techniques also apply to coastal leucothoe plant care, which shares the same genus.

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

Keiske Leucothoe is susceptible to spider mites, lace bugs, 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.

Keiske Leucothoe grows outdoors in USDA Zone 11a. It survives winters down to planting zone 11a. Keiske Leucothoe is native to southern Honshu, Japan. In cooler regions, grow Keiske Leucothoe as a houseplant or bring it indoors before the first frost.