Swamp Brunia Plant Care

Swamp Brunia (Brunia palustris) belongs to the Bruniaceae family within the Brunia genus. Swamp Brunia is native to the Western Cape.

Swamp Brunia displays a compact, rounded shrub growth habit, reaching up to 2 ft tall with a spread of approximately 2 ft. Swamp Brunia produces small, clustered flowers in white or pink.

Leaf size: approximately 1.5 inches.

Water a young or newly planted Swamp Brunia 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.

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

Brunia palustris tolerates temperatures of 60–75°F. Swamp Brunia prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining acidic soil mix with peat moss and perlite. Good drainage is essential for Swamp Brunia to prevent waterlogging, which leads to root rot and fungal issues.

Feed Swamp Brunia 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 peat moss and perlite. Avoid low spots where water collects after rain.

Swamp Brunia is suited to USDA Zone 13a.

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.

Swamp Brunia can spread to about 2 ft (0.6 m) and reach about 2 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 Swamp Brunia 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.

Swamp Brunia 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.

Swamp Brunia can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to cape heath plant care, which shares the same genus.

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

Swamp Brunia 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.

Swamp Brunia grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Swamp Brunia is native to the Western Cape. In cooler regions, grow Swamp Brunia as a houseplant or bring it indoors before the first frost.