Columbian Lewisia Plant Care

Columbian Lewisia (Lewisia columbiana) belongs to the Montiaceae family within the Lewisia genus. Columbian Lewisia is native to the western United States and British Columbia. Columbian Lewisia is also known as Climbing Lewisia.

Columbian Lewisia displays a low rosette, clumping habit growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Columbian Lewisia produces showy, star-shaped flowers in various colors like pink, red, orange, or yellow.

Leaf size: approximately 2 inches.

Water a young or newly planted Columbian Lewisia 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.

Columbian Lewisia thrives in full sun to partial shade.

Lewisia columbiana tolerates temperatures of 50–75°F. Columbian Lewisia prefers humidity levels of 40–60%.

Well-draining sandy soil with added organic matter like peat moss or compost. Good drainage is essential for Columbian Lewisia to prevent waterlogging, which leads to root rot and fungal issues.

Feed Columbian Lewisia 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 added organic matter like peat moss or compost. Avoid low spots where water collects after rain.

Columbian Lewisia is suited to USDA Zone 4a – 8b.

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.

Columbian Lewisia 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 Columbian Lewisia 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.

Columbian Lewisia is hardy down to USDA zone 4a, so once established it can stay outdoors through winter in that zone and warmer ones.

Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.

Young and container-grown shrubs need extra protection: roots in a pot freeze much more easily than roots in the ground.

Columbian Lewisia can be propagated through seeds, division of offsets. Similar propagation techniques also apply to short-sepaled lewisia plant care, which shares the same genus.

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

Columbian Lewisia is susceptible to aphids, slugs, snails. 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.

Columbian Lewisia grows outdoors in USDA Zone 4a – 8b. It survives winters down to planting zone 4a. Columbian Lewisia is native to the western United States and British Columbia.