giant bellflower 'Brantwood'

Any fertile, moist but well-drained soil in sun or partial shade; the flower colour is best preserved in shade

Cut back after flowering to prevent self-seeding and to encourage a second flush of flowers

Propagate by seed in containers in a cold frame in spring - this cultivar comes almost true from seed. Divide in spring or early autumn. Take stem-tip cuttings from new growth after flowering

Vulnerable to slugs and snails

Powdery mildews and a rust may be problematic