Centaurea 'Jordy' (Perennial cornflower 'Jordy'): Beautiful maroon-purple flowers over felty silvery-green foliage.

Centaurea montana 'Parham' (Perennial cornflower 'Parham'): Large lavender purple fluffy flowers over silvery-green foliage. To 40cm. Hardy

Centaurea montana 'Violetta (Perennial cornflower 'Violetta'): Large purple cornflower-like flowers over grey-green foliage. Very attractive to bees and butterflies. Up to 40cm. Hardy.

Erigeron 'Adria' (Fleabane 'Adria'): Mound forming perennial forming masses of semi-double purple flowers with central yellow disc. Hardy. Up to 60cm.

Erigeron 'Dunkelste Aller' (Fleabane 'Darkest of all'): Large purple daisy flowers over a long season in summer. Great in sunny, dry borders. To 30cm. Hardy

Festuca amethystina: Evergreen grass with elegant, dusky purple arching flower stalks very early in season, for a grass.

Geranium maculatum 'Beth Chatto' (Spotted cranesbill 'Beth Chatto'): Very pretty palest purple flowers held above attractive green foliage. To 50cm. Hardy.

Geranium maculatum 'Vickie Lynn' (Spotted cranesbill 'Vickie Lynn'): Pale lavender flowers above a clump of fresh green divided leaves. Prefers soil that doesn't dry out in summer. Hardy. Up to 45cm.

Geranium wlassovianum: Warm purple flowers over attractive velvety foliage. Excellent autumn foliage colour.

Geranium x magnificum 'Rosemoor' (Purple cranesbill 'Rosemoor'): A mass of large purple flowers in early summer. Large, slightly felty leaves with good autumn colour.

Hosta 'Halcyon': Medium sized Hosta with attractive blue-grey heart-shaped leaves and pale lavender purple flowers. Hardy. Up to 40cm.

Penstemon 'Sour Grapes' (Syn. Stapleford Gem): Purple-blue tubular flowers with a metallic sheen and patches of white in the throat. Protect from hard frosts. To 60cm.

Polemonium 'Heaven Scent' (PBR) (Jacob's Ladder Heaven Scent'): Lovely dark, purple foliage and stems in spring which contrasts well with the pale lilac purple bell like flowers. Lightly scented. Hardy. Up to 50cm.

Polemonium 'Lambrook Mauve': Sprays of light purple-pink bell-shaped flowers with a yellow centre above fresh green ferny foliage. Hardy. Up to 60cm.

Salvia nemorosa 'Ostfriesland' (Balkan Clary 'Ostfriesland'): Masses of upright spikes of purple flowers in mid summer. Easy and trouble free. To 50cm. Hardy [Collect Only]

Sedum telephium 'Purple Emperor' (Syn. Hylotelephium telephium 'Purple Emperor'): A fine sedum with purple, almost metallic fleshy leaves and flattish heads of purple-red flowers in late summer.