They prefer well-drained, slightly acidic soil and filtered shade or afternoon shade. Upright form that blooms early July through fall. It blooms from early August through Fall. Low spreading form that has profuse flowers from early July through fall. Considered the hardiest member of the series.
Foliage is rough and has a dark cast in winter.
Upright, globose form that blooms late July to frost. Mounding form that blooms abundantly from July through fall.