 | White Swan Coneflower. The White Swan Coneflower (Echinacea purpurea 'White Swan') is an easy-to-grow perennial flower that produces strikingly large, fragrant, and bright white daisies-like flowers. The flowers rise on sturdy stems above neat clumps of foliage from early summer into autumn. A native cultivar of Coneflower, White Swan has prominent coppery-green central cones that are surrounded by pure white radial petals. These flower heads turn black as the seeds mature, adding further interest and contrast. Its rich... - White Swan Coneflower. |