Cut leaf evening primrose (Oenothera laciniata) is a native, biannual plant. It forms a rosette during its first year of growth and produces yellow flowers on low spreading stems in its second year. The pretty, yellow flowers open in the evening and close during bright, sunny conditions Flowering will last for over a month, and sphinx moths and native bees pollinate the flowers. Unfortunately, the plant also hosts the tarnished plant bug, a piercing, sucking insect that feeds on vegetable and ornamental herbaceous plants.