Cape Weed Plant Care

Cape Weed (Arctotheca hirta) belongs to the Asteraceae family within the Arctotheca genus. Cape Weed is native to Namibia and the Cape Provinces of South Africa. Cape Weed is also known as Arctotis prostrata.

Cape Weed displays a low rosette, spreading ground cover growth habit, reaching up to 0.5 ft tall with a spread of approximately 1.5 ft. Cape Weed produces bright yellow daisy-like flowers.

Leaf size: approximately 3 inches.

Water a young or newly planted Cape Weed 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.

Cape Weed thrives in full sun to partial shade.

Arctotheca hirta tolerates temperatures of 50–80°F. Cape Weed prefers humidity levels of 40–70%.

Well-draining sandy soil mix with added organic matter. Good drainage is essential for Cape Weed to prevent waterlogging, which leads to root rot and fungal issues.

Feed Cape Weed 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 soil mix with added organic matter. Avoid low spots where water collects after rain.

Cape Weed is suited to USDA Zone 9b – 11b.

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.

Cape Weed can spread to about 2 ft (0.5 m) and reach about 1 ft (0 m) tall. Space plants about 2 ft (0.5 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 Cape Weed 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.

Cape Weed is frost-tender (hardy to USDA zone 9). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Cape Weed can be propagated through seeds, division of clumps. Similar propagation techniques also apply to cape weed plant care, which shares the same genus.

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

Cape Weed is susceptible to aphids, snails, slugs. 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.

Cape Weed grows outdoors in USDA Zone 9b – 11b. It survives winters down to planting zone 9b. Cape Weed is native to Namibia and the Cape Provinces of South Africa. In cooler regions, grow Cape Weed as a houseplant or bring it indoors before the first frost.