A-Z

An erect, straggly biennial, 60 cm-1.2 m (2-4 ft.) high, it has ridged, branched stems with trifoliate leaves and narrow...

A low growing perennial, 15 cm (6 in) in height, it has a basal rosette of broad, oval, veined and...

Purple loosestrife is a perennial which grows on a creeping rhizome with erect stems reaching 60cm-1.5 m (2-5 ft.) in...

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

A perennial, growing from a scaly bulb to 1-1.5 m (3-5 ft.) in height, it has stiff, erect stems with...

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

An annual or biennial, growing to 60-90 cm (2-3 ft.), it has a rank, unpleasant smell and coarsely toothed, grey-green,...

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

A bushy, hardy perennial, up to 1.5 m (5 ft.) tall, with lax stems, pinnately divided leaves and racemes of...

An annual herb, 15-30 cm (6-12 in) tall, with trailing stems, small, finely divided grey-green leaves and racemes of tubular,...