Allium 'Millennium': Sturdy stems of pinky purple globe-like flowers. Strappy green foliage which remains fresh through the summer. Loved by bees. Hardy, Up to 40cm.

Campanula 'Sarastro' (Bellflower 'Sarastro'): Upright stems with long drooping large violet-blue bells. May need some support. Good cottage garden plant. Hardy. Up to 60cm.

Centaurea montana 'Parham' (Perennial cornflower 'Parham'): Large lavender purple fluffy flowers over silvery-green foliage. Very attractive to bees and butterflies. To 40cm.

Festuca amethystina: Evergreen grass with elegant, dusky purple arching flower stalks very early in season, for a grass.To 50cm.

Geranium 'Lakwijk Star' (Cranesbill 'Lakwijk Star'): Purple flowers with darker veining held above clumps of soft grey-green foliage which turns a vibrant red in autumn. Hardy. Up to 45cm.

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 phaeum (Dusky cranesbill): Purple flowers with swept-back petals held high above soft green foliage. Early to flower, reliable and easy. To 60cm. Hardy. [Collect Only]

Geranium phaeum 'Raven' (Dusky cranesbill 'Raven'): Dark purple flowers with long stamens and swept-back petals held high above soft green foliage. Great for shady areas. To 60cm. Hardy.

Geranium wlassovianum: Warm purple flowers over attractive velvety foliage. Excellent autumn foliage colour. To 40cm. [Collect Only]

Geranium x magnificum 'Rosemoor' (Purple cranesbill 'Rosemoor'): A mass of large purple flowers in early summer. Large, slightly felty leaves with good autumn colour. To 50cm.

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

Hosta 'One Man's Treasure': Bright green shiny leaves, distinctive red tinge to leaf stems.

Hosta 'Patriot': Large green leaves cleanly edged in white. Lilac flowers in summer. To 50cm. Hardy.

Hosta 'Praying Hands': Very upright, rippled leaves. Leaves are green, narrowly edged in white and curl up. Lilac flowers in summer. Hardy. Up to 40cm. AGM.

Hosta 'Risky Business' (PBR): A distinctive white streak in the centre of dark green leaves. Forms a medium sized mound with lavender purple flowers. Hardy. Up to 50cm. [Collect Only]

Hosta 'Sum and Substance': Large, bright green leaves. lavender flowers, good in shade or sun. Hardy. To 60cm high and wide. [Collect Only]

Liriope 'Big Blue' (Blue turf lily 'Big Blue'): Spikes of vibrant purple flowers in autumn, larger than the usual form, evergreen strappy foliage. Good for dry shade. Hardy. Up to 50cm

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.

Salvia nemorosa 'Caradonna' (Balkan Clary 'Caradonna'): Rich purple spikes in early summer - just in time for Chelsea Flower Show at which is widely used.To 50cm. Hardy

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

Stachys officinalis 'Hummelo' (Betony 'Hummelo'): Upright spikes of rosy purple flowers above pointed dark green foliage. Very attractive to bees. To 50cm. Hardy. [Collect Only]