Summer

A graceful aromatic perennial, up to 2 m (6 ft.) tall, with erect, hollow stems and mid-green, feathery foliage the...

A herbaceous perennial, on a stout rootstock, 1-1.2 m (3-4 ft.) tall, with irregularly pinnate, inversely lance-shaped leaves and dense...

A herbaceous perennial, growing to 2.3 m (7 ft.), it has a thick, fleshy taproot, finely divided, feathery leaves and...

A handsome hardy perennial which grows to at least 2.1 m (7 ft.) tall, with purplish stems, whorls of slender,...

A tall, hardy perennial, growing to 1.5 m (5 ft.), with lance late, rough-textured leaves surrounding the stems (per foliate),...

A hardy annual up to 60 cm (2 ft.) tall, with finely divided, feathery leaves. A mass of shallow-cupped flowers...

A bushy, bristly biennial, 60-90 cm (2-3 ft.) tall, with narrow lance-shaped leaves, spotted, hairy stems and dense spires of...

A tall, hardy perennial, 1.2 m (4 ft.) high, with a rhizomatous rootstock and ovate-lance late leaves. The purplish-pink daisy-like...

A biennial or short-lived perennial, reaching 2m (6 ft.) in height. The plant has a rosette of large, downy leaves...

A clump-forming, aromatic perennial, 40-90 cm (16-36 in) tall, with pinnate leaves, made up of lance-shaped leaflets, and tall racemes...