Lepidium howei-insulae Plant Care

Lepidium howei-insulae (Lepidium howei-insulae) belongs to the Brassicaceae family within the Lepidium genus.

Lepidium howei-insulae displays a low rosette, spreading growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Lepidium howei-insulae produces small white or pink clustered blooms.

Leaf size: approximately 2 inches.

Water a young or newly planted Lepidium howei-insulae every 4–7 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.

Lepidium howei-insulae thrives in full sun to partial shade.

Lepidium howei-insulae tolerates temperatures of 50–75°F. Lepidium howei-insulae prefers humidity levels of 40–60%.

Well-draining sandy loam with added organic matter. Good drainage is essential for Lepidium howei-insulae to prevent waterlogging, which leads to root rot and fungal issues.

Feed Lepidium howei-insulae 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. Avoid low spots where water collects after rain.

Lepidium howei-insulae 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.

Lepidium howei-insulae 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 Lepidium howei-insulae 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.

Lepidium howei-insulae 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.

Lepidium howei-insulae can be propagated through seeds, division of clumps. Similar propagation techniques also apply to field pepperweed plant care, which shares the same genus.

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

Lepidium howei-insulae is susceptible to aphids, flea beetles, cabbage worms. 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.

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