Water regularly during the growing season, allowing the soil to dry slightly between waterings. Reduce watering in fall and winter. Drought tolerant once established, but consistent moisture promotes better flowering.

Avoid waterlogged conditions which can lead to root rot.

Deadhead spent flowers regularly to encourage more blooms and a tidier appearance. Cut back plants in late winter or early spring to remove dead or damaged growth and to shape the plant.

This also stimulates new, vigorous growth.

Easily propagated from seed sown in early spring or fall. Can also be propagated by stem cuttings taken in late spring or early summer. Cuttings should be rooted in a well-draining medium and kept moist.

As Oenothera lindheimeri is often grown as an annual or short-lived perennial, frequent repotting is generally not required. If grown in a container, repot when the plant becomes root-bound, typically every 1-2 years in spring, using a well-draining potting mix.