Campanula americana is commonly called Tall Bellflower, which is an appropriate name for this attractive biennial. It blooms in mid summer with small blue flowers spaced along the top halves of the tall stems.
American Bellflower is tall but narrow, so space the plants about a foot apart to make a nice grouping. They make wonderful companion plants for late-blooming trumpet lilies.
Campanula americana is native to North America. It prefers part shade with average to rich soil. Deer resistant. Hardy in zones 4-8. Self sows.
Sowing Campanula americana Seeds:
Sow indoors 8 weeks before the last frost date. Sow on the surface. Full sun to part shade. Spacing 12".