Primrose, Evening Common

Oenothera biennis

Robust native biennial with bright yellow fragrant flowers, blooming nocturnally June to October. Occurs in open woods, fields, floodplains, shores and disturbed areas; up to 4,000 ft. elevation. Seeds provide winter food for many birds. Visited by native bees, butterflies, hummingbirds and pollinated by hawkmoths at night. Use in full sun wildflower gardens with low to moderate moisture requirements. May escape wildflower gardens.