Echinacea purpurea ‘White Swan’ or Purple Coneflower. Echinacea purpurea ‘White Swan’ is native to North America, It is a member of the Asteraceae family of plants. Echinacea purpurea ‘White Swan’ is a rhizomatous, clump-forming perennial. It grows up to 1.2m or 4ft.
Echinacea purpurea flowers in summer and fall. The flowers are hermaphroditic. They are white and have yellow centers.
Grow Echinacea purpurea in the sun or partial shade. Plant it in well-drained, humus-rich soil. Echinacea purpurea is related to the sunflower family. Propagate Echinacea purpurea by divisions or root cuttings. It was used as medicine by American Indians and even today it is used in herbal medicine to prevent upper respiratory infections.