As pretty as, and very similar to Campanula. The tall erect, leafy stems, of Adenophora Amethyst are topped in early summer with drooping, flaring, bell-shaped, amethyst blue flowers that are mildly fragrant. Makes a nice vertical accent for the middle of a perennial border.
Adenophora are profuse bloomers with many spikes of colorful bells in summer. Give them room to spread to make a spectacular show en masse. Deadheading will prevent seeding, and a barrier will help with running if spread is not wanted. A better choice than Campanula for southern gardens.
Cut plants down to basal foliage in fall, clean up in spring. May be pinched back in May to promote bushiness. Difficult to divide due to deep roots. Long lived.