Canterbury bells (Campanula medium ‘Calycanthema’) kam-PAN-yew-lah MEE-dee-um Genus:  Campanula This 2- to 3-foot-tall bellflower bears single or double flowers in white, blue, or pink.  Noteworthy Characteristics:  Biennial, flowers in second year. Care:  May need support. Grow in fertile, moist but well-drained soil that has a neutral to alkaline pH. Site in full sun or partial shade and cut back after flowering. Propagation:  Sow seed in containers in a cold frame in spring. Divide in spring or autumn. Take basal cuttings in spring. Problems:  Slugs, snails, vine weevils, spider mites and aphids. Powdery mildew, rust, Septoria and Ramularia leaf spot, and Southern blight.

Overview

Height 1 ft. to 3 ft. Spread 1 ft. to 3 ft. Growth Habit Clumps Growth Pace Slow Grower Light Full Sun to Part Shade Moisture Medium Moisture Maintenance Moderate Characteristics Showy Flowers Bloom Time Spring, Summer Flower Color Blue, Pink, White Uses Beds and Borders Style Cottage Garden Seasonal Interest Spring Interest Type Perennials