Purple

A hardy perennial, 30-60 cm (1-2 ft.) tall, it has ovate to heart-shaped, pale-green, and soft-textured leaves and inconspicuous greenish-yellow...

A shrubby, evergreen perennial, 10-30 cm (4-12 in) in height, it has creeping roots and dark-green, glossy foliage, shaped like...

A mat-forming, hairy, hardy perennial, it has a basal rosette of wrinkled, ovate leaves with dentate margins. Flower stems rise...

A tall annual or biennial, up to 1.2 m (4 ft.) in height, it has large, deeply lobed, spiny leaves...

A mat-forming hardy succulent, it has blue-green, rounded leaves with pointed spiny tips, arranged in rosettes. Erect, hairy stems, to...

A clump-forming, hardy perennial, to 38 cm (15 in) tall, it is semi-evergreen (does not keep all its leaves in...

A biennial, up to 1.2 m (4 ft.) tall, it has a large basal clump of broadly ovate grey-green leaves,...

A hardy perennial, growing to 30 cm (12 in), it has hairy stems and dark green leaves, blotched with creamy-white...

An aromatic perennial on a creeping rootstock, it is 50 cm (20 in) in height. Leaves are linear to ovate,...

A hardy, clump-forming perennial, 30-90 cm (1-3 ft.) tall, it grows on a creeping rootstock, with pinnate leaves divided into...