Tall spikes of dark purple flowers. The lower flowers open first, making their way up the stems. Superb in mixed borders flowering June-August with a height and spread to around 90cm x 40cm. &n..

Tall spikes of white flowers. The lower flowers open first, making their way up to the top. Height to about 90cm. Any fertile well drained soil in sun. ..

Tall, short lived perennial with clusters of tiny lilac-purple flowers throughout summer on stems upto 1.8m tall. Seeds freely and is excellent at attracting bees and butterflies into the garden. D..

Tall, short lived perennial with clusters of tiny lilac-purple flowers throughout summer on stems upto 1.8m tall. Seeds freely and is excellent at attracting bees and butterflies into the garden. D..

A dwarf selection of this great garden favourite which lends itself to being planted in the front of the border. Sculptural purple flowers are held above the foliage from May until Autumn. Height t..

Large heads of rich claret flowers. Height 45cm. Spread 50cm. Flowers June to October. Best in any well drained soil in full sun. Half-hardy. ..

Upright clump forming deciduous perennial with small spikes of blue flowers summer to early autumn. Grow in any moist or well drained soil in full sun. Height 150cm, spread 60cm. ..

Elegant spikes of white flowers are produced in profusion above toothed green leaves from June to September. Dead head to encourage repeat blooms. Height and spread to around 75cm x 30cm. Very effe..

Erect growth. Pinkish purple flowers are produced in profusion above toothed green leaves in summer. Height and spread to around 1.5m x 60cm. ..