Sterigmostemum anchonioides Plant Care

Sterigmostemum anchonioides (Sterigmostemum anchonioides) belongs to the Brassicaceae family within the Sterigmostemum genus. Sterigmostemum anchonioides is native to Iran.

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

Leaf size: approximately 2 inches.

Water a young or newly planted Sterigmostemum anchonioides 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.

Sterigmostemum anchonioides thrives in full sun to partial shade.

Sterigmostemum anchonioides tolerates temperatures of 50–75°F. Sterigmostemum anchonioides prefers humidity levels of 40–60%.

Well-draining loamy soil with added compost for nutrients. Good drainage is essential for Sterigmostemum anchonioides to prevent waterlogging, which leads to root rot and fungal issues.

Feed Sterigmostemum anchonioides 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 loamy soil with added compost for nutrients. Avoid low spots where water collects after rain.

Sterigmostemum anchonioides 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.

Sterigmostemum anchonioides 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 Sterigmostemum anchonioides 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.

Sterigmostemum anchonioides 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.

Sterigmostemum anchonioides can be propagated through seeds, division of root clumps.

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

Sterigmostemum anchonioides 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.

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