Campanula Glomerata Superba Clustered Bellflower. Campanula superba common name clustered bellflower bellflower strong upright facing clusters of deep violet bells bloom heavily in late spring through mid summer. The stiff stems of superba yield charming cut flowers.
This selection will produce a low clump of large green leaves. Vigorous and charming award winner campanula glomerata superba clustered bellflower is a rhizomatous perennial with upward facing bell shaped rich violet blue flowers held in dense clusters counting up to 15 flowers. Medium tall upright stems appear in early summer bearing large showy clusters of rich purple funnel shaped flowers.
Pairs nicely with coreopsis and achillea.
This selection will produce a low clump of large green leaves. Vigorous and charming award winner campanula glomerata superba clustered bellflower is a rhizomatous perennial with upward facing bell shaped rich violet blue flowers held in dense clusters counting up to 15 flowers. Genus campanula may be annuals herbaceous or evergreen perennials with bell or star shaped often blue flowers in late spring or summer details superba is a strong growing rhizomatous perennial forming a wide colony of erect stems to 60cm with oblong to ovate leaves and dense clusters of deep violet purple bell shaped flowers 3cm in length. Campanula glomerata alba clustered bellflower is a vigorous clump forming perennial with upward facing bell shaped pure white flowers held in dense clusters.