We have found 78 plants that meet your criteria.

Price Pruned
Alpine Columbine ‘Aquilegia alpinum’ Delicate, nodding blue flowers in spring NOW £4.99 coming soon
Aster ‘Aster Little Carlow (cordifolius hybrid)’ Pretty violet-blue daisies in late summer £5.99 Buy
Beard Tongue ‘Penstemon Sour Grapes’ Greyish-blue flowers with metallic sheen £5.49 Buy
Beards Tongue ‘Penstemon Jean Grace’ Stunning mediterranean blue flowers £5.99 Buy
Price Pruned
Bellflower ‘Campanula carpatica Blaue Clips’ Profusion of blue, bell-like flowers NOW £4.99 Buy
Blue Cowslip ‘Pulmonaria angustifolia Blaues Meer’ Bright blue flowers free flowering £5.49 Buy
Bog Sage ‘Salvia uliginosa’ Intense blue flowers £5.99 Buy
Price Pruned
Catmint ‘Nepeta Six Hills Giant’ A hardy catmint with lavender flowers NOW £4.99 Buy
Catmint ‘Nepeta subsessilis Cool Cat’ Lavender-blue flowers. Great for a herb garden £5.99 Buy
Catmint ‘Nepeta subsessilis Washfield’ Pretty catmint with bright blue flowers £5.99 Buy
Catmint ‘Nepeta x faassenii’ Loose drifts of lavender flowers. Great for edging £5.99 Buy
Catmint ‘Nepeta x faassenii Kit Cat’ A dwarf variety with purple flowers £5.99 Buy
Catnip ‘Nepeta racemosa Walker's Low’ Long flowering period £5.99 Buy
Price Pruned
Columbine ‘Aquilegia McKana Hybrids’ Bonnet-like flowers in a range of colours NOW £4.99 Buy
Comfrey ‘Symphytum Hidcote Blue’ Blue and white flowers, good ground cover £6.99 Buy
Comfrey ‘Symphytum Hidcote Pink’ Great for a woodland garden £4.99 coming soon
Common Sage ‘Salvia officinalis’ A good companion plant £3.99 Buy
Cranesbill ‘Geranium Brookside’ Deep blue flowers and long flowering seasons £5.99 Buy
Cranesbill ‘Geranium himalayense Gravetye’ Large, purple-blue flowers with reddish centres £5.99 Buy
Cranesbill ‘Geranium Johnson's Blue’ Elegant blue flowers, good for groundcover £4.99 Buy