Astilbe 'Amethyst': Large, upright panicles of lilac-purple flowers in summer over green ferny foliage. Excellent for damp or shady spots. Hardy. Up to 80cm.

Astrantia major 'Abbey Road' (PBR) (Hattie's pincushion, Masterwort 'Abbey Road'): Dark violet-purple flowers on dark almost-black stems above green foliage. Long-flowering. Hardy. Up to 80cm.

Campanula Iridescent Bells = 'Iribella' (PBR) (Bellflower 'Iridescent Bells'): Purple buds open to silvery-lilac bells in summer. Prefers a moisture retentive soil. Height to 80cm. Hardy

Hosta 'Frances Williams': Large heart-shaped crinkled leaves with a prominent green-yellow margin. Lavender purple flowers in mid summer. Hardy. Up to 75cm.

Liatris spicata 'Kobold' (Gayfeather 'Kobold'): Plump spikes of purple flowers in mid to late summer. Likes dryish soil in a sunny spot. To 80cm. Hardy [Collect Only]

Penstemon 'Pensham Plum Jerkum': Plum-purple tubular flowers with white throat markings. Semi-evergreen in milder areas. Protect from hard frosts. To 70cm.

Phlox paniculata 'Eventide' (Phlox 'Eventide'): Mauve-purple, scented flowers on erect stems and green lance-shaped leaves. A good vigorous selection. Hardy. Up to 90cm. AGM [Collect Only]

Verbena officinalis 'Bampton' (Vervain 'Bampton'): Attractive plant with dark purple foliage and upright, wiry stems with delicate purple flowers. Long flowering. Up to 90cm. Hardy.