Echinacea tennesseensis 'Rocky Top' is a hybrid of the endangered species. This plant is easily grown in average, dry to medium moisture, well-drained soil, in full sun to part shade. It does best in full sun and the flowers tend to follow the sun like a sunflower. 'Rocky Top' is adaptable, tolerant of dought, heat, humidity, and poor soil.
This prolific bloomer has pink ray flowers that are held upright instead of drooping, and bloom June to September. Songbirds love the seeds and butterflies love the flowers.
For more information on this plant, visit the USDA PLANTS Database: http://plants.usda.gov/java/profile?symbol=ECTE3