University of Illinois Extension
Directory of Wildflowers - University of Illinois Extension

Directory of Wildflowers

Missouri Evening Primrose
Oenothera macrocarpa (Oenothera missouriensis)

Missouri Evening Primrose
Missouri Evening Primrose

Quick Profile

Exposure
Full Sun
 
Mature Height
9 - 12 Inches
 
USDA Hardiness Zones
3 - 7 
 
Native To:
Illinois
Missouri
 
Soil Conditions
Dry
Moist, Well-Drained
 
Bloom Color
Yellow
 
Bloom Season
June - August
 

Features

Large yellow flowers (3-4 inches in diameter) with four petals. Flowers ofpen late in the day. Large, 4-winged seed pod.

Culture

Full sun; moist soils with excellent drainage; drought tolerant.

Notes

Found in dry sites (rocky hillsides, prairies).