12-18 inches, space 12-16 inches on center, spreads by rhizomes, forms clumps
Maintenance
After bloom cut the foliage back to the basal leaves. The plant will respond with a new flush of foliage. Can be aggressive in good sites. Divide to maintain vigor.
Propagation
seeds, easy by division
Native Site
Europe
Misc Facts
Common name for this species is Clustered Bellflower or Danes Blood Bellflower.
Author's Notes
Have found that the C. glomerata plants tend to sprawl. Plant in groups of 3-5 and they will help support each other.
Notes & Reference
#4-Herbaceous Perennial plants,#40-Manual of Herbaceous Ornamental Plants, #54-The Well Tended Perennial Garden), #123-Dwarf Campanula (Graham Nicholls), #209-Campanulas A Gardeners Guide (Peter Lewis and Margaret Lynch)