Herb

A large hardy perennial, to 2 m (6 fat), on a thick rhizome, with a basal clump of palmate lobed...

A perennial climber, growing to 6 m (20 ft.), with a strong, woody stem and ovate, prominently-veined, dark-green leaves. It...

A half-hardy annual with broadly ovate, deeply-veined leaves, reddish stems and small spikes of white flowers in summer. There are...

A hardy biennial, growing on a strong taproot, the spiny, toothed, dark-green leaves have a striking cobweb-effect pattern of white...

A hardy perennial, 30-90 cm (1-3 ft.) tall, it has coarse-textured, ovate, grey-green leaves, with serrated edges. Pale-mauve flowers in...

A vigorous, bushy perennial, 30-80 cm (12-32 in) in height, it has strongly lemon-scented, rough-textured, ovate, toothed leaves. Inconspicuous clusters...

A hardy annual, 20-60 cm (8-24 in), it has hairy stems and ovate leaves, toothed at the edges. Inconspicuous flowers...

A hardy biennial (or short-lived perennial if flower heads are cut before seeding), it grows on a taproot, from 50...

Classed as a semi-evergreen, because it loses some foliage in winter, mainly if weather is severe. It is a bushy...

A tall, impressive annual, up to 3 m (10 ft.) in height, with erect stems and oval, hairy leaves. The...