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Genus Lewisia

Lewisia tweedyi Photo/Illustration: F. Robert Wesley

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These natives of western North America are perennials, some evergreen, with fleshy tufts or rosettes of leaves and funnel-shaped flowers in shades of pink, purple, orange, yellow, or white. They bloom in spring and summer, often for a long time. The deciduous species die back after flowering. They need excellent drainage, and are beautiful in a rock garden, or in crevices or a wall.
Noteworthy characteristics: Fleshy foliage. Long-blooming flowers. Needs excellent drainage. Native to western North America.
Care: Lewisia need sharply drained, neutral to acidic soil of moderate fertility. Grow evergreens in light shade and deciduous species in full sun. They will not tolerate winter moisture.
Propagation: Remove offsets from evergreen species in early summer, or start seeds in a cold frame in autumn.
Problems: Rust, stem rot, snails, aphids, and mealybugs can sometimes be problems.

Species, varieties and cultivars for genus Lewisia

Lewisia cotyledon
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Hardiness Zones:

Lewisia cotyledon is an evergreen perennial of incredible beauty and well-balanced proportions. Fleshy leaves emerge in flat rosettes of spoon-shaped dark green leaves. Funnel-shaped flowers to 1 inch across are borne in compact panicles. The true species has candy-striped pink flowers. Hybrids bloom in shades from white to magenta.

Lewisia tweedyi

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Hardiness Zones:

This evergreen perennial has broad, lance-shaped mid-green leaves to 4 inches long, tinted with purple and borne in basal rosettes up to 18 inches in diameter. Open, funnel-shaped, pink-to-cream flowers to 3 inches across appear once in early spring.