Campanula glomerata, or Clustered Bellflower, is an upright perennial native to Europe and temperate Asia. It forms a dense foliage clump of ovate to lance-shaped, toothed, somewhat hairy, long-stalked, medium green basal leaves. Upward facing, bell-shaped, violet to lavender blue flowers bloom in spherical terminal clusters atop smaller-leaved stems rising above the basal clump. Smaller flower clusters simultaneously bloom in the upper leaf axils. Stem leaves  are narrower and shorter than the basal leaves. Flowers bloom in late spring to early summer, and are attractive to hummingbirds, butterflies, and other pollinators.