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Desert Evening Primrose

Oenothera primiveris

Desert evening primrose is a low desert annual whose large yellow flowers open at dusk after winter rains, a fleeting Southwestern wildflower for hot, sandy sites.

Family
Onagraceae
Type
wildflower
Lifespan
annual
Height
0.2–0.8 ft
Spacing
0.5–1 ft apart
Light
sun
Soil moisture
dry
Soil pH
neutral, alkaline
Bloom
March, April, May
Bloom colors
yellow
Wildlife value
pollinators, butterflies
Landscape uses
container
Native states
AZ, CA, NM, NV, TX, UT