White Evening Primrose or Showy Primrose
A day blooming species with large cup shaped flowers that are soft pink and with age turn a softer pink or even white. Oenothera speciosa ranges in height from 6 inches (6 in = 15.2 cm) tall to 2 feet (2 ft = 61 cm) tall, depending on the moisture of the soil. Flowers are fragrant and stay open at night too. This one spreads by way of under ground runners, so is best used in open areas with sandy loam or contained with a deep border. A vigorous-growing, pinkish flowering evening primrose that produces dozens of large almost 2 inch wide saucer-shaped fragrant flowers that are open durring the day and night. Drought tolerant, easy-to-grow species.. Very low maintenance perennial for tough landscape sites.
Summer blooming in Zones 5-9
Oenothera speciosa is found growing in these states: Alabama, Arizona, Arkansas, California, Connecticut, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Mississippi, Missouri, Nebraska, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Utah, Virginia and West Virginia. We have grown Oenothera speciosa here in zone 4 with some winter protection.
Surface sow the seeds, light needed for best germination, use F70, germination in 10-30 days.