Azalea Plant Care

Azalea (Camellia azalea) belongs to the Theaceae family within the Camellia genus. Azalea is native to the Ehuangzhang Provincial Nature Reserve in Yangchun City, Guangdong, China, is a national first-class protected plant in China.

Azalea displays an upright, dense shrub growth habit, reaching up to 10 ft tall with a spread of approximately 8 ft. Azalea produces large, showy blooms in various colors like white, pink, red.

Leaf size: approximately 4 inches.

Water a young or newly planted Azalea 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.

Azalea thrives in partial shade to full sun.

Camellia azalea tolerates temperatures of 40–70°F. Azalea prefers humidity levels of 50–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining, acidic soil rich in organic matter like peat moss or pine bark. Good drainage is essential for Azalea to prevent waterlogging, which leads to root rot and fungal issues.

Feed Azalea 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 partial shade to full sun and well-draining, acidic soil rich in organic matter like peat moss or pine bark. Avoid low spots where water collects after rain.

Azalea is suited to USDA Zone 11a.

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.

Azalea 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 Azalea 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.

Azalea 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.

Azalea can be propagated through seeds, semi-hardwood cuttings. Similar propagation techniques also apply to crapnell's camellia plant care, which shares the same genus.

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

Azalea is susceptible to aphids, scale insects, tea scale. 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.

Azalea grows outdoors in USDA Zone 11a. It survives winters down to planting zone 11a. Azalea is native to the Ehuangzhang Provincial Nature Reserve in Yangchun City, Guangdong, China, is a national first-class protected plant in China. In cooler regions, grow Azalea as a houseplant or bring it indoors before the first frost.