Christmas bush Plant Care

Christmas bush (Chromolaena impetiolaris) belongs to the Asteraceae family within the Chromolaena genus. Christmas bush is native to the island of Dominica. Christmas bush is also known as devil weed, Siam weed.

Christmas bush displays an upright, spreading shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Christmas bush produces small white or lavender flowers in clusters.

Leaf size: approximately 6 inches.

Water a young or newly planted Christmas bush 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.

Christmas bush thrives in full sun to partial shade.

Chromolaena impetiolaris tolerates temperatures of 65–85°F. Christmas bush prefers humidity levels of 40–70%.

Well-draining sandy loam with added organic matter. Good drainage is essential for Christmas bush to prevent waterlogging, which leads to root rot and fungal issues.

Feed Christmas bush every 4 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 full sun to partial shade and well-draining sandy loam with added organic matter. Avoid low spots where water collects after rain.

Christmas bush is suited to USDA Zone 13b.

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.

Christmas bush can spread to about 2 ft (0.6 m) and reach about 3 ft (1 m) tall. Space plants about 2 ft (0.6 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 Christmas bush 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.

Christmas bush 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.

Christmas bush can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to bigelow's thoroughwort plant care, which shares the same genus.

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

Christmas bush is susceptible to aphids, spider mites, whiteflies. 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.

Christmas bush grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Christmas bush is native to the island of Dominica. In cooler regions, grow Christmas bush as a houseplant or bring it indoors before the first frost.