Carolina frostweed Plant Care

Carolina frostweed (Crocanthemum carolinianum) belongs to the Cistaceae family within the Crocanthemum genus. Carolina frostweed is also known as Carolina desert-rose.

Carolina frostweed displays a low spreading shrub growth habit, reaching up to 1.5 ft tall with a spread of approximately 2 ft. Carolina frostweed produces showy yellow flowers with five petals.

Leaf size: approximately 1.5 inches.

Water a young or newly planted Carolina frostweed every 7–14 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.

Carolina frostweed thrives in full sun to partial shade.

Crocanthemum carolinianum tolerates temperatures of 50–85°F. Carolina frostweed prefers humidity levels of 40–70%.

Well-draining sandy soil with low fertility. Good drainage is essential for Carolina frostweed to prevent waterlogging, which leads to root rot and fungal issues.

Feed Carolina frostweed 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 with low fertility. Avoid low spots where water collects after rain.

Carolina frostweed 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.

Carolina frostweed can spread to about 2 ft (0.6 m) and reach about 2 ft (0 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 Carolina frostweed 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.

Carolina frostweed 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.

Carolina frostweed can be propagated through seeds, division. Similar propagation techniques also apply to canada frostweed plant care, which shares the same genus.

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

Carolina frostweed is susceptible to aphids, spider mites, whiteflies. 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.

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