Showy Evening Primrose

Photo Courtesy John Hilty http://www.illinoiswildflowers.info/ Photo Courtesy John Hilty http://www.illinoiswildflowers.info/

Showy Evening Primrose  Oenothera speciosa Full to part sun, medium to moderately dry moisture level, tolerant of a wide range of soils including clay, moderately acid to neutral pH.  18-24 inches height, blooms spring to summer, pink flowers, spreads readily by both re-seeding and rhizomes. Germination Code:  A Native Region:  Statewide but concentrated in southern part of Coastal Plain and in the Low Plateaus (Highland Rim and Central Basin) Upright to sprawling perennial which spreads to form extensive colonies.  Low maintenance plant with showy flowers.  Best grown in informal areas where plants can spread without intruding on other plants.  Flowers open in evening and remain open to late morning (or all day if cloudy). Seed capsules attract birds, especially finches. flower;sun;medium;clay flower;sun;medium;loam flower;sun;medium;sand flower;sun;dry;clay flower;sun;dry;loam flower;sun;dry;sand flower;sun/shade;medium;clay flower;sun/shade;medium;loam flower;sun/shade;medium;sand flower;sun/shade;dry;clay flower;sun/shade;dry;loam flower;sun/shade;dry;sand