Evening Primrose - Common (Oenothera biennis)
Common Evening Primrose grows in recently disturbed soils of prairies, old fields, roadsides and other sunny medium to dry sites. It can reach heights of 6' in the right conditions but is often shorter. It is one of the last natives blooming late into fall. As a biennial, it grows vegetatively during the first year and completes its life cycle during the second, but will re-seed. Although labeled as a weed by some, it is a very important native plant with a long bloom time benefiting nectaring moths, butterfiles, caterpillars and many kinds of bees.
Sun Exposure - Full, Partial
Soil Moisture - Medium-Wet, Medium, Medium-Dry, Dry
Height - 6 feet
Bloom Time - June, July, August, September, October
Bloom Color - Yellow
Photo courtesy of Prairie Moon Nursery.