We have found 94 plants that meet your criteria.

Geranium 'Spinners' Cranesbill Wonderful large deep purple blue blooms £5.86 Buy
Hosta 'Patriot' Plantain Lily White-margined leaves £5.86 Buy
Price Pruned
Iris pallida 'Argenteovariegata' Great Purple Flag Stunning grey-green and white variegated leaves NOW £5.86 Buy
Iris sibirica 'Caesar's Brother' Siberian Iris Intense violet flowers. Great in boggy ground £5.86 Buy
Iris sibirica 'Perry's Blue' Siberian Flag Looks great planted in bold clumps £5.86 Buy
Iris sibirica 'Silver Edge' Siberian Flag Blue flowers edged with white £5.86 Buy
Iris sibirica 'Tropic Night' Siberian Flag Violet flowers with yellow throats. Good for boggy ground £5.86 Buy
Nepeta subsessilis 'Cool Cat' Catmint Lavender-blue flowers. Great for a herb garden £5.86 Buy
Nepeta subsessilis 'Washfield' Catmint Pretty catmint with bright blue flowers £5.86 Buy
Nepeta x faassenii Catmint Loose drifts of lavender flowers. Great for edging £5.86 Buy
Nepeta x faassenii 'Kit Cat' Catmint A dwarf variety with purple flowers £5.86 Buy
Price Pruned
Nepeta 'Six Hills Giant' Catmint A hardy catmint with lavender flowers NOW £4.88 Buy
Perovskia abrotanoides Russian Sage Silvery white aromatic foliage with long lasting blue flowers £7.82 Buy
Price Pruned
Phlox divaricata 'Blue Perfume' Phlox Masses of lilac-blue fragrant blooms NOW £5.37 Buy
Price Pruned
Phlox paniculata 'Blue Paradise' Perennial Phlox Fragrant violet flowers all summer NOW £5.37 Buy
Pulmonaria angustifolia 'Blaues Meer' Blue Cowslip Bright blue flowers free flowering £5.37 Buy
Pulmonaria 'Blue Ensign' Lungwort Bright blue flowers £5.86 Buy
Price Pruned
Rosa Rhapsody in Blue '('Frantasia')' (PBR) rose (shrub) The closest to a blue rose NOW £10.76 Buy
Salvia patens Sage Large, stunning blue blooms £5.86 Buy
Symphytum 'Hidcote Blue' Comfrey Blue and white flowers, good ground cover £6.84 Buy