The yellow flowers are only blooming and die in the evening, so it is known as "evening primrose". Evening Primrose is the wildflower that is discovered in North America, Europe, and Asia. It is an oil that has a very fine texture, has excellent moisturizing properties. Evening primrose seed oil is rich in gamma linoleic acid, which is an omega6 fatty acid that helps solve cardiovascular problems, immune system, nervous system, and reproductive system.