Home Prairie and Wetland Center
16245 S US Hwy 71
Belton, MO 64012
Tel: (816) 331-9738
Fax: (816) 331-9739

Oenothera biennis

Common Evening Primrose

Click here for print friendly version.
<< PREV Image 1 of 2 NEXT >>
Oenothera biennis (Common Evening Primrose)

Evening primrose blooms in moist woods from June through August. Soft yellow, scented flowers open at dusk and stay open through the night and much of the morning. The flowers usually close by afternoon. Seeds ripen from August to October. The flowers are pollinated by Lepidoptera (Moths & Butterflies) and bees and is noted for attracting wildlife.

The plant prefers sandy to loamy well-drained soils and can grow in nutritionally poor soil. The plant can tolerate dry or moist soil that is acid, neutral or basic (alkaline). It cannot grow in the shade.

Additional Information:

2-5 Feet


12-15 Inches


Bloom/Seasonal Color
Soft Yellow

USDA Hardiness Zone 4-8

Home Owner Growing and Maintenance Tips:
Good choice for meadows and cultivated beds.

Good Companions
Meadow Phlox (Phlox maculata), Black-eyed Susan (Rudbeckia hirta), Woodland Spiderwort (Tradescantia ernestina), Heart-Leaved Meadow Parsnip (Zizia aptera)

Characteristics & Attributes

Hydrologic Designation


Nature Attracting


Season of Interest

Late (July-frost)
Mid (May-June)

Soil Moisture


Special Uses


Sun Exposure

Full Sun

USFS MO Ecological Map

Wildlife Benefit

Butterfly Nectar