Conoclinium coelestinum (Mistflower)

Type: Native Perennial
Height: 1-4' tall; 1-3' spread
Sun: Full sun to partial shade
Flowers: Blue-purple
Water: moist to wet in well drained soils
 
Can spread aggressiely by rhizomes. Purplish stems with showy, fluffy, tubular, blue-purple flowers in late summer to early fall. Attracts butterflis.