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Tufted Evening Primrose

Oenothera caespitosa

Details & Attributes

Plant Type(s) Perennial
Native to Arizona Yes!
Water Needs Low-moderate
Sun Full sun, partial shade
Pollinators Bees, butterflies
Has Spines No
In relative feet, width by height
6"-1' × 1-2'
Flowering Season April-September
Flower Color White/pink
Minimum Temperature Range -30 °F
Leaf Description Lance shaped leaves attached to the base of the plant, typically with toothed margins.
Fruit Small seeds in a oval seed pod
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Elevation Range 3000-7500 ft.
Description Found throughout the western U.S. and all the way from northern Mexico to southern Canada across a broad elevation range. Showy white-pink flowers open in the evening and close the following morning. The flowers are followed by small pickle shaped seed pods which split to reveal numerous small brown seeds. This species has abundant potential to reseed and can act almost as a groundcover as it spreads to fill a bed. This spreading quality recommends tufted evening primrose as an understory planting in pollinator gardens.