We have found 129 plants that meet your criteria.

African lily
Agapanthus africanus African lily Wonderful globes of blue flowers from midsummer £8.99 Buy
African lily
Agapanthus Back in Black ('B in B') (PBR) African lily Stunning, deep blue flowers... £9.99 Buy
African lily
Agapanthus 'Black Pantha' (PBR) African lily Deep blue, almost black flowers £11.99 Buy
African lily
Agapanthus Headbourne hybrids African lily Showy globes of blue flowers £8.99 Buy
African lily
Agapanthus 'Lavender Haze' African lily A new, large-headed variety £9.99 Buy
Crocus Special Offers
African lily
Agapanthus 'Peter Pan' African lily A compact variety with pale blue flowers NOW £12.99 Buy
African lily
Agapanthus Queen Mum ('Pmn06') African lily Big bi-coloured flowers £12.99 Buy
African lily
Agapanthus 'Taw Valley' African lily A spectacular summer-flowering perennial £6.99 Buy
Mexican giant hyssop
Agastache 'Blue Fortune' Mexican giant hyssop Spires of lilac flowers and aromatic leaves £7.49 Buy
bugle
Ajuga reptans 'Catlin's Giant' bugle Handsome evergreen ground cover £6.99 Buy
Arkansas blue star
Amsonia hubrichtii Arkansas blue star Colourful summer flowers and autumn foliage £6.99 Buy
Amsonia
Amsonia orientalis Amsonia Grey-blue, star-like flowers £6.99 Buy
amsonia
Amsonia tabernaemontana amsonia Dense clusters of ice-blue, star-like flowers £7.99 Buy
amsonia
Amsonia tabernaemontana var. salicifolia amsonia Piercing blue flowers in late spring and summer £7.99 Buy
granny's bonnet
Aquilegia caerulea granny's bonnet A cottage garden favourite £7.49 Buy
granny's bonnet
Aquilegia vulgaris var.stellata 'Blue Barlow' (Barlow Series) granny's bonnet Stunning violet-blue double flowers £7.49 Buy
michalmas daisy
Aster × frikartii 'Mönch' michalmas daisy Lavender-blue, daisy flowers £7.99 Buy
false indigo
Baptisia australis false indigo Decorative seed-pods in winter £7.99 Buy
lesser catmint
Calamintha nepeta subsp. nepeta 'Blue Cloud' lesser catmint Aromatic leaves and blue flowers £6.99 Buy
bellflower
Campanula carpatica 'Blaue Clips' bellflower Profusion of blue, bell-like flowers £6.99 Buy