Bells and Whistles Clustered Bellflower

Bells and Whistles is an upright clustered bellflower with dense violet-blue flower heads above green foliage. This tall cultivar brings a strong vertical accent to sunny or partly shaded borders and can provide cut flowers as well as summer color. ## Flowers and garden use The [Proven Winners cultivar page](https://www.provenwinners.com/plants/campanula/bells-and-whistles-clustered-bellflower-campanula-glomerata) describes violet-blue clusters, a long summer flowering period, and attraction for bees and butterflies. The [North Carolina Extension plant profile](https://plants.ces.ncsu.edu/plants/campanula-glomerata/) lists Bells and Whistles among cultivars with dense violet-blue clusters. Flower color can appear more blue or purple depending on light and viewing conditions. ## Size and placement Plants reach about 24–28 inches tall and 22–26 inches wide. Allow space for the upright clump and place it where the flower stems remain visible. It suits mixed perennial borders and cutting gardens; group with lower plants near its base rather than crowding the crown. ## Light, soil, and water Choose full sun to part shade and average, well-drained soil. Proven Winners recommends average water and fertile or average soil. Water new plantings regularly while they establish and during prolonged dry periods; do not leave the crown in saturated soil. ## Maintenance Remove spent stems to keep the planting tidy and cut back old foliage after it declines. Proven Winners describes the plant as easy to grow. Once established, clumps can be divided to make more plants of the same cultivar, as described in the [RHS Campanula growing guide](https://www.rhs.org.uk/plants/campanula/specialist/growing-guide).