Campanula glomerata 'Superba'
[Dahurica] Clustered Bellflower (kam-PAN-you-la: glom-e-RA-ta)
Clump forming plants with large clusters of rich violet colored flowers grouped together in tight clusters at the ends of 20 to 28 inch tall stems. Nice cut flowers. Easily grown plants in most locations in full sun to light shade. Tends to flop over if plants do not receive over seven hours of direct sun. Reblooming if cut back when the main flush of flowers are finishing up. Plants bloom in early summer. Use in a sunny location in moisture retentive soil that are rich. Under hot conditions best when given some shade during the afternoon.
Zones 3-8. Surface sow seeds on to a moist seed medium and cover tray with glass or plastic. Germination in 1-3 weeks at F 65. It is helpful to use lighted days (but keep out of very bright direct sunlight -- the sun can dry the pots out quickly while the seedlings have no roots) and dark nights. Most plants will bloom the second year but if started early some blooming the first year.