Horwoodia dicksoniae Plant Care

Horwoodia dicksoniae (Horwoodia dicksoniae) belongs to the Brassicaceae family within the Horwoodia genus. Horwoodia dicksoniae is native to desert regions of Iraq, Jordan, Kuwait, and Saudi Arabia in the northern Arabian Peninsula.

Horwoodia dicksoniae displays a low rosette, spreading ground cover growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Horwoodia dicksoniae produces small clusters of white or purple flowers.

Leaf size: approximately 2 inches.

Water a young or newly planted Horwoodia dicksoniae 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.

Horwoodia dicksoniae thrives in full sun to partial shade.

Horwoodia dicksoniae tolerates temperatures of 50–75°F. Horwoodia dicksoniae prefers humidity levels of 40–60%.

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

Feed Horwoodia dicksoniae 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 full sun to partial shade and well-draining sandy loam with added organic matter for moisture retention. Avoid low spots where water collects after rain.

Horwoodia dicksoniae is suited to USDA Zone 12a.

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.

Horwoodia dicksoniae can spread to about 1 ft (0.3 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.3 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 Horwoodia dicksoniae 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.

Horwoodia dicksoniae 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.

Horwoodia dicksoniae can be propagated through seeds, division of offsets.

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

Horwoodia dicksoniae is susceptible to aphids, cabbage worms, flea beetles. 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.

Horwoodia dicksoniae grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Horwoodia dicksoniae is native to desert regions of Iraq, Jordan, Kuwait, and Saudi Arabia in the northern Arabian Peninsula. In cooler regions, grow Horwoodia dicksoniae as a houseplant or bring it indoors before the first frost.