This herbaceous perennial has a few decumbent stems and forms a clump. It has rosettes of lobed mid green lance-shaped leaves and the trumpet-shaped white flowers appear solitary during sunset in summer.

Hardiness zones 5 to 9 

Oenothera acaulis is naturally found in South America growing in Chile on the mountain slopes in moderately fertile, very well drained stony soils. It prefers an open sunny position and is frost tolerant but drought tender. 

This Evening Primrose is grown for its flowers and clumping habit. This plant in small gardens in front herbaceous borders or used in rockeries as a specimen. It is suitable to mountainous regions establishing from division in 1 to 2 years and is moderately long lived.  This perennial is also grown in pots and tubs or used in small or cottage gardens. ID 2798

Oenothera (ee-NOH-ther-ah) acaulis (ah-KAW-lis)

Onagraceae (on-uh-GRAY-see-ee)
Fuchsias, Evening Primrose Family