Whitestem Evening Primrose
Oenothera albicaulis
Whitestem evening primrose opens large white flowers at dusk that fade pink by morning, a night-bloomer of dry western plains pollinated by hawkmoths.
- Family
- Onagraceae
- Type
- wildflower
- Lifespan
- annual
- Height
- 0.5–1.5 ft
- Spacing
- 1–1.5 ft apart
- Light
- sun
- Soil moisture
- dry
- Soil pH
- neutral, alkaline
- Bloom
- April, May, June
- Bloom colors
- white, pink
- Wildlife value
- pollinators, butterflies
- Landscape uses
- border, container
- Native states
- AZ, CO, KS, MN, MT, ND, NE, NM, SD, TX, UT, WY