We have found 41 plants that meet your criteria.

Clematis florida var. 'sieboldiana' Clematis (Group 2) Unusual flowers £12.71 Buy
Deschampsia cespitosa Tufted Hair-grass Ideal for sun or shade £5.86 Buy
Erica x darleyensis 'J.W. Porter' Darley Dale Heath Pretty purplish-pink flowers £3.42 Buy
Erysimum 'Bowles' Mauve' Wallflower Stunning mauve flowers £5.86 Buy
Hebe 'Red Edge' Shrubby Veronica Small hebe with lilac flowers £7.82 Buy
Iris foetidissima Stinking Gladwyn Bright orange berries. Useful for dry shade £5.86 Buy
Price Pruned
Lavandula angustifolia 'Hidcote' Lavender A compact lavender, with intense, violet flowers NOW £4.88 Buy
Price Pruned
Lavandula angustifolia 'Melissa Lilac' Lavender Large, lilac flowers in summer NOW £4.88 Buy
Price Pruned
Lavandula pedunculata subsp. 'pedunculata' French Lavender (syn L. stoechas... Distinctive butterfly-like, mauve flowers NOW £4.88 Buy
Price Pruned
Lavandula 'Helmsdale' French Lavender Burgundy-purple flowers topped by purple bracts NOW £4.88 Buy
Lavandula 'Rocky Road' French Lavender A new variety with pale pink, butterfly like flowers £6.84 Buy
Nepeta grandiflora 'Wild Cat' Giant Catmint A giant catmint with deep purple-blue flowers £5.86 Buy
Nepeta racemosa 'Walker's Low' Catnip Long flowering period £5.86 Buy
Passiflora caerulea Blue Passion Flower Climber with large, exotic flowers £9.78 Buy
Pittosporum tenuifolium 'Tom Thumb' Kohuhu Small, rounded shrub with purple leaves. £8.80 Buy
Rhododendron 'Anah Kruschke' Hybrid Rhododendron Eye-catching purple blooms £19.56 Buy
Rhododendron 'Fumiko' Evergreen Azalea (syn. Geisha Purple)... Exquisite purple flowers £7.82 Buy
Rosmarinus officinalis Rosemary A deliciously aromatic favourite £5.99 Buy
Vinca minor 'Atropurpurea' Lesser Periwinkle Delicious dark damson-purple flowers £5.86 Buy
Price Pruned
Viola odorata Sweet Violet Sweetly fragrant flowers NOW £4.88 Buy