Also called Evening Star, King's cure-all
More About Oenothera biennis
- Fragrant, yellow, saucer-shaped flowers appear on tall stalks
- Blooms open at dusk and closing by noon the following day
- Lance-shaped, slightly serrated, mid-green leaves
- Biennial, self-seeding perennial
- Flowers form on second year's growth
- Bloom Time: June to September
- Flower Size: 2.5 cm
Its roots during the first year of growth are edible and the seeds are important as bird feed. Seeds can remain viable in the soil for up to 70 years.
Evening Primrose Growing and Maintenance Tips
Thrives in full sun with average moisture in a somewhat sandy soil. Can be found along roadsides, in abandoned fields, slopes, vacant lots and ditches.
Oenothera biennis Characteristics
Moist to Average
Flowering TimeLt. Spr-Sum
Landscape usesRoadside planting