Campanula persicifolia

Peach-leaved Bellflower   

With its slender stems adorned by a profusion of bell-shaped blooms, Campanula persicifolia typically grows to a height of 1 to 2.5 feet (30 to 75 centimeters), forming a clump of basal leaves from which rise slender, wiry stems, these blooms nod gracefully on its stem, giving the plant an air of elegance and tranquility.