Flowering Ash Plant Care

Flowering Ash (Fraxinus floribunda) belongs to the Oleaceae family within the Fraxinus genus. Flowering Ash is native to South Asia, East Asia, and Southeast Asia. Flowering Ash is also known as Himalayan Ash.

Flowering Ash displays a tall, deciduous tree growth habit, reaching up to 80 ft tall with a spread of approximately 40 ft. Flowering Ash produces inconspicuous small clusters.

Leaf size: approximately 6 inches.

Water a young or newly planted Flowering Ash 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.

Flowering Ash thrives in full sun.

Fraxinus floribunda tolerates temperatures of 50–100°F. Flowering Ash prefers humidity levels of 30–70%.

Well-draining loamy soil with good fertility. Good drainage is essential for Flowering Ash to prevent waterlogging, which leads to root rot and fungal issues.

Feed Flowering Ash every 8 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 and well-draining loamy soil with good fertility. Avoid low spots where water collects after rain.

Flowering Ash is suited to USDA Zone 8a – 10b.

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.

Flowering Ash can spread to about 40 ft (12.2 m) and reach about 80 ft (24 m) tall. Space plants about 40 ft (12.2 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 Flowering Ash 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.

Flowering Ash is hardy down to USDA zone 8a, so once established it can stay outdoors through winter in that zone and warmer ones.

Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.

Young and container-grown trees need extra protection: roots in a pot freeze much more easily than roots in the ground.

Flowering Ash can be propagated through seeds, hardwood cuttings. Similar propagation techniques also apply to european ash plant care, which shares the same genus.

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

Flowering Ash is susceptible to aphids, emerald ash borer. 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.

Flowering Ash grows outdoors in USDA Zone 8a – 10b. It survives winters down to planting zone 8a. Flowering Ash is native to South Asia, East Asia, and Southeast Asia.