Harebell or Bluebell is found in many locations, particularly in Scotland (as well as the Midwest). The fine green foliage clumps produce delicate stems that are topped by light blue nodding flowers in clumps in early summer. If deadheaded, Campanula rotundifolia will rebloom, especially in cooler climates. Harebells are a good choice for naturalizing, as they seed themselves well in woodland edges.