Yellow Evening Primrose
Oenothera flava
Yellow evening primrose is a low, stemless western native whose bright yellow flowers open from a basal rosette at evening, hardy on dry plains and foothills.
- Family
- Onagraceae
- Type
- wildflower
- Lifespan
- perennial
- Height
- 0.2–1 ft
- Spacing
- 0.5–1 ft apart
- Light
- sun
- Soil moisture
- dry, moist
- Soil pH
- neutral, alkaline
- Bloom
- May, June, July
- Bloom colors
- yellow
- Wildlife value
- pollinators, butterflies
- Landscape uses
- border, container
- Native states
- AZ, CA, CO, ID, MT, NM, NV, UT