We have found 90 plants that meet your criteria.

Price Pruned
Mexican Giant Hyssop ‘Agastache Blue Fortune’ Spires of lilac flowers and aromatic leaves NOW £5.49 Buy
Price Pruned
Amsonia ‘Amsonia tabernaemontana’ Dense clusters of ice-blue, star-like flowers NOW £5.99 Buy
Price Pruned
Columbine ‘Aquilegia McKana Hybrids’ Bonnet-like flowers in a range of colours NOW £4.99 Buy
Price Pruned
Granny's Bonnet ‘Aquilegia vulgaris var. stellata Blue Barlow’ Stunning violet-blue double flowers NOW £4.99 Buy
Aster ‘Aster Little Carlow (cordifolius hybrid)’ Pretty violet-blue daisies in late summer £5.99 Buy
Michaelmas Daisy ‘Aster sedifolius nanus’ A small plant that has big impact £5.99 Buy
Crocus Special Offers
Michaelmas Daisy ‘Aster turbinellus’ Sprays of violet blue flowers NOW £5.99 Buy
Crocus Special Offers
Lesser Catmint ‘Calamintha nepeta subsp. nepeta Blue Cloud’ Aromatic leaves and blue flowers NOW £3.99 Buy
Crocus Special Offers
Delphinium ‘Delphinium Blue Jay’ Showy, semi-double blue flowers with dark eyes NOW £5.49 Buy
Globe Thistle ‘Echinops bannaticus Taplow Blue’ Spherical, bright blue flower-heads £5.99 Buy
Sea Holly ‘Eryngium bourgatii’ Lovely silver-veined foliage £5.99 Buy
Sea Holly ‘Eryngium bourgatii Picos Amethyst’ New variety with deep blue flowers £6.99 Buy
Giant Sea Holly ‘Eryngium giganteum Silver Ghost’ Stunning silvery white bracts £6.99 Buy
Sea Holly ‘Eryngium x zabelii Jos Eijking’ Spiny metallic-blue flowers in late summer £6.99 Buy
Bearded Iris ‘Iris Blue Rhythm’ Tall variety with cornflower-blue flowers £6.99 Buy
Bearded Iris ‘Iris Dusky Challenger’ Huge ruffled silky rich purple-blue blooms £6.99 Buy
Bearded Iris ‘Iris Interpol’ Sweetly scented and gorgeous colour £6.99 Buy
Bearded Iris ‘Iris Jane Phillips’ A popular variety with blue flowers £6.99 Buy
Intermediate Bearded Iris ‘Iris Langport Chapter’ A regal iris £6.99 Buy
Siberian Iris ‘Iris sibirica Flight of the Butterflies’ Pretty violet-blue flowers £5.99 Buy