Panicle Hydrangea Plant Care

Panicle Hydrangea (Hydrangea paniculata) belongs to the Hydrangeaceae family within the Hydrangea genus. Panicle Hydrangea is native to China, Japan. Panicle Hydrangea is also known as Panicled Hydrangea, PeeGee Hydrangea, Tree Hydrangea.

Panicle Hydrangea displays an upright, bushy growth habit, reaching up to 10 ft tall with a spread of approximately 8 ft. Panicle Hydrangea produces white-to-pink, large, cone-shaped clusters.

Leaf size: approximately 5 inches.

Water a young or newly planted Panicle Hydrangea every 3–7 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.

Panicle Hydrangea thrives in full sun.

Hydrangea paniculata tolerates temperatures of 60–90°F. Panicle Hydrangea prefers humidity levels of 40–70%.

Well-draining, loamy soil. Good drainage is essential for Panicle Hydrangea to prevent waterlogging, which leads to root rot and fungal issues.

Feed Panicle Hydrangea every 3 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. Avoid low spots where water collects after rain.

Panicle Hydrangea is suited to USDA Zone 3a – 8b.

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.

Panicle Hydrangea can spread to about 8 ft (2.4 m) and reach about 10 ft (3 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 Panicle Hydrangea 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.

Panicle Hydrangea is hardy down to USDA zone 3a, 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.

Panicle Hydrangea can be propagated through seeds, layering, stem cuttings. Similar propagation techniques also apply to hydrangea plant care, which shares the same genus.

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

Panicle Hydrangea is susceptible to aphids, spider mites, 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.

Panicle Hydrangea grows outdoors in USDA Zone 3a – 8b. It survives winters down to planting zone 3a. Panicle Hydrangea is native to China, Japan.