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Tufted Evening Primrose

Oenothera cespitosa

Tufted Evening Primrose
Photo: Stan Shebs, CC BY-SA 3.0

Tufted evening-primrose is a low, rosette-forming perennial from dry western North American grasslands and deserts, with night-opening fragrant flowers. It is grown in rock and native plant gardens and needs excellent drainage.

Family
Onagraceae (Evening-primrose family)
Grows as
Perennial
Light
Full sun
Water
Water sparingly and let the soil dry out fully between waterings; it resents wet roots.
Soil
Sandy or gritty, very well-drained soil or a rock garden mix.
Temperature
Hardy in cold winters; tolerates hot, dry summers.
How easy
Easy
Native range
WC. & C. Canada to N. Mexico
Climate
desert or dry shrubland

About

Oenothera cespitosa, known commonly as tufted evening-primrose or fragrant evening-primrose, is a perennial plant of the genus Oenothera native to western North America from the western edge of the Great Plains and all parts of the Intermountain West in a wide range of dry habitats. Its flowers are open at night and fade by the next day. The species is cultivated in gardens, particularly in its native range.

How to grow it

Tufted evening-primroses are grown in rock gardens, moon gardens, and in native plant gardening. They are valued for attracting hawk moths, for their pleasant scent, and long blooming season of about six weeks in early to late summer. The plants require good drainage.

Where it grows

Tufted evening primrose is native to western North America from southern Canada to northern Mexico. In Canada it grows in just three provinces, Alberta, Manitoba, and Saskatchewan. In Mexico it is found in four states, Baja California, Baja California Sur, Chihuahua, and Sonora.

Other Oenothera plants

Common evening primrose · Antioch Dunes evening primrose · Birdcage evening primrose · Beach evening primrose · Hooker's evening primrose · Narrowleaf evening primrose · Redsepal evening primrose · Cutleaf evening primrose · Lindheimer's Beeblossom · Threadleaf evening primrose · Longstem evening primrose · Bigfruit evening primrose

Text excerpted from the Wikipedia article Oenothera cespitosa by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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