Onagraceae
Ozark Sundrops
Oenothera macrocarpa
Hidden treasure, prairie sunshine, evening light.
- Family
- Onagraceae
- Genus
- Oenothera
- Native to
- Central United States
- Bloom season
- Spring, Summer
- Type
- Perennial
- Height
- 15–25 cm (6–10 in)
- Sunlight
- Full sun
- Soil
- Sandy, gravelly, well-drained
- Water
- Low
- Hardiness
- 4–8
- Lifespan
- Long-lived perennial
Did you know
- Ozark sundrops produce some of the largest yellow flowers of any prairie native—each lemon-yellow saucer can be over 4 inches across, the size of a small dinner plate.
- The flowers open in late afternoon and stay open all night—they're pollinated by sphinx moths in the Ozark foothills, who hover and drink the rich nectar by moonlight.
- After the flowers fade, huge winged seedpods develop—they're so distinctive they look like alien spacecraft and dry to a beautiful papery beige for winter interest.
- Despite being a Great Plains native, Ozark sundrops form a low spreading mat just inches tall—the huge flowers seem to float just above the silvery-green leaves like saucers on water.
- Native peoples of the Plains used the roots as a folk treatment for asthma—and the seeds, like all evening primroses, contain gamma-linolenic acid (GLA), a rare omega-6 fatty acid valued in skincare.
Color meanings
0
hidden treasure
1
prairie sunshine
2
evening light