Japanese Orixa Plant Care

Japanese Orixa (Orixa japonica) belongs to the Rutaceae family within the Orixa genus. Japanese Orixa is native to China, Japan and South Korea.

Japanese Orixa displays a small tree, shrub growth habit, reaching up to 6 ft tall with a spread of approximately 4 ft. Japanese Orixa produces fragrant white flowers with 4-5 petals.

Leaf size: approximately 4 inches.

Water a young or newly planted Japanese Orixa 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.

Japanese Orixa thrives in full sun to partial shade.

Orixa japonica tolerates temperatures of 60–85°F. Japanese Orixa prefers humidity levels of 40–70%.

Well-draining loamy soil with added sand and organic matter. Good drainage is essential for Japanese Orixa to prevent waterlogging, which leads to root rot and fungal issues.

Feed Japanese Orixa 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 with added sand and organic matter. Avoid low spots where water collects after rain.

Japanese Orixa is suited to USDA Zone 13a.

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.

Japanese Orixa can spread to about 4 ft (1.2 m) and reach about 6 ft (2 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 tree spacing calculator.

Prune Japanese Orixa 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.

Japanese Orixa 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.

Japanese Orixa can be propagated through seeds, cuttings.

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

Japanese Orixa is susceptible to citrus leaf miner, scale insects, citrus whitefly. 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.

Japanese Orixa grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Japanese Orixa is native to China, Japan and South Korea. In cooler regions, grow Japanese Orixa as a houseplant or bring it indoors before the first frost.