Prickly Heath Plant Care

Prickly Heath (Epacris mucronulata) belongs to the Ericaceae family within the Epacris genus. Prickly Heath is native to Tasmania.

Prickly Heath displays a compact, spreading shrub growth habit, reaching up to 2 ft tall with a spread of approximately 3 ft. Prickly Heath produces tubular-shaped flowers in shades of red, pink, or white.

Leaf size: approximately 2 inches.

Water a young or newly planted Prickly Heath 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.

Prickly Heath thrives in bright indirect light. Avoid placing Prickly Heath in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Epacris mucronulata tolerates temperatures of 55–70°F. Prickly Heath prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining acidic soil mix with added peat moss and pine bark. Good drainage is essential for Prickly Heath to prevent waterlogging, which leads to root rot and fungal issues.

Feed Prickly Heath every 6 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 bright indirect light and well-draining acidic soil mix with added peat moss and pine bark. Avoid low spots where water collects after rain.

Prickly Heath is suited to USDA Zone 12b.

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.

Prickly Heath can spread to about 3 ft (0.9 m) and reach about 2 ft (1 m) tall. Space plants about 3 ft (0.9 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 Prickly Heath 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.

Prickly Heath is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Prickly Heath can be propagated through seeds, cuttings. Similar propagation techniques also apply to whorled heath plant care, which shares the same genus.

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

Prickly Heath is susceptible to aphids, scale insects, spider mites. 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.

Prickly Heath grows outdoors in USDA Zone 12b. It survives winters down to planting zone 12b. Prickly Heath is native to Tasmania. In cooler regions, grow Prickly Heath as a houseplant or bring it indoors before the first frost.