Swedish Rock Cress Plant Care

Swedish Rock Cress (Arabidopsis suecica) belongs to the Brassicaceae family within the Arabidopsis genus. Swedish Rock Cress is native to Sweden, Finland, and parts of European Russia, and has been introduced into neighbouring regions.

Swedish Rock Cress displays a low rosette, compact growth habit, reaching up to 0.5 ft tall with a spread of approximately 0.5 ft. Swedish Rock Cress produces small white flowers in clusters.

Leaf size: approximately 1.5 inches.

Water a young or newly planted Swedish Rock Cress every 3–5 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.

Swedish Rock Cress thrives in full sun to partial shade.

Arabidopsis suecica tolerates temperatures of 50–75°F. Swedish Rock Cress prefers humidity levels of 40–60%.

Well-draining sandy loam with a slightly acidic pH. Good drainage is essential for Swedish Rock Cress to prevent waterlogging, which leads to root rot and fungal issues.

Feed Swedish Rock Cress 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 a slightly acidic pH. Avoid low spots where water collects after rain.

Swedish Rock Cress 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.

Swedish Rock Cress can spread to about 1 ft (0.2 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.2 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 Swedish Rock Cress 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.

Swedish Rock Cress 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.

Swedish Rock Cress can be propagated through seeds. Similar propagation techniques also apply to rock cress plant care, which shares the same genus.

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

Swedish Rock Cress 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.

Swedish Rock Cress grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Swedish Rock Cress is native to Sweden, Finland, and parts of European Russia, and has been introduced into neighbouring regions. In cooler regions, grow Swedish Rock Cress as a houseplant or bring it indoors before the first frost.