150 seeds. Campanula latifolia. Bellflower. Perennial.
 
Greater Bellflower.
 
Hardy to zones 3 to 9.
 
Height 36 inches. Spacing 18 inches. 
 
Sowing Campanula latifolia Seeds
 
Start seeds indoors 8 weeks before the last frost date. Sow on the surface. Full sun to part shade.
 
Photo courtesy of Diane's Flower Seeds