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

Dierama 'Blackberry Bells' (Angel's Fishing Rod): Large bells of deep-purple maroon flowers held on tall, slender stems above grass-like foliage. Hardy. To 1.2m

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. [Collect Only]

Hosta 'Blue Mouse Ears': A small form of Hosta with smooth rounded blue-grey leaves and soft purple flowers in the summer. Hardy. Up to 50cm.

Hosta 'Devon Green': Elegant hosta with tapering, dark green, fine-veined leaves. Lilac flowers in summer

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.

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

Thalictrum 'Elin' (Rue 'Elin'): Tallest of the Thalictrums we grow with huge heads of lavender and yellow flowers in mid-late summer. To 2m. Hardy. [Collect Only]

Thalictrum delavayi 'Hewitt's Double' (Chinese meadow rue 'Hewitt's Double'): Tiny purple pom-pom flowers dance airily above ferny grey-green foliage. Height to 1.2m. Hardy [Collect Only]

Thalictrum rochebruneanum (Meadow rue): Airy sprays of lavender flowers with yellow stamens on tall purple-tinged stems. To 1.4m. Hardy