Canterbury Bells is a biennial Campanula grown for its stature and and its soft pastel colors. The flowers are bell-shaped, single or double petaled, in shades of blue, pink, or white, depending on the variety. They typically bloom during the cooler part of the season, from mid spring to early summer. Foliage is green. Plant grows about 2 to 3 feet tall and not quite as wide. It may reseed. A lovely cut flower.
Grow in rich soil that is well drained; requires regular, though not frequent watering. Powdery mildew may be a problem if over-head watered or if kept too wet. But back after blooming slows to encourage a second bloom in early fall, though if you let some flowers go to seed you may be rewarded with new plants next season. A biennial, it is sometimes used like an annual and removed at the end of the season.