Echinacea purpurea Purple Coneflower is a native US prairie plant that was brought into gardens during the 1700s. Prized for its many medicinal properties, the large purple blooms will be covered with butterflies and bees in late summer. The seed heads feed many types of wild birds. The flowers are absolutely regal in the garden bed, held on strong stems. Very pretty! 3 feet. Full sun. Seeds should be planted in cold conditions. Perennial. 50+ seeds.