200 Seeds Evening Primrose Oenothera lamarckiana Showy Yellow Blooms

Evening Primrose (Oenothera lamarckiana) is a hardy biennial to short-lived perennial valued for its bright, lemon-yellow flowers that open in the late afternoon and evening, creating a luminous display in borders, meadows, and wildflower gardens. Plants form low rosettes the first year, then send up tall stems the following season, blooming generously through summer and attracting nighttime pollinators with their subtle fragrance.

Evening Primrose works beautifully in cottage gardens, pollinator plantings, and naturalized areas where its luminous blooms can be appreciated at dusk. The flowers are ideal for cut arrangements when gathered in the evening, and the plant self-sows readily to return year after year. Its tall, airy stems blend well with grasses and other wildflowers, adding vertical interest and a soft, informal texture to mixed plantings.

Species: Oenothera lamarckiana

Type: Biennial to short-lived perennial

Plant Habit: Upright, clump-forming

Sun: Full sun to partial shade

Soil: Well-drained, average to sandy

Days to Harvest: Not applicable

Zones: 4-9

Germination: 14-30 days

Sowing: Surface sow, lightly press into soil; needs light to germinate

Spacing: 12-18 inches

Notes: Blooms open in late afternoon and evening