cow parsley 'Ravenswing'

Grow in any well-drained soil in full sun or partial shade. Cut down to near ground level in early autumn and mulch well

Deadhead to prevent prolific self-seeding

Propagate by seed; sow seeds in a cold frame in autumn or spring and select dark-leaved seedlings

Slugs, snails and caterpillars can damage young growth

Powdery mildews may be a problem