We have found 101 plants that meet your criteria.

African Lily ‘Agapanthus africanus’ Globes of blue flowers in late summer £5.99 Buy
African Lily ‘Agapanthus Black Pantha’ Deep blue, almost black flowers £8.99 Buy
African Lily ‘Agapanthus Headbourne Hybrids’ Showy globes of blue and white flowers £5.99 Buy
African Lily ‘Agapanthus Lavender Haze’ A new, large-headed variety £6.99 Buy
Price Pruned
African Lily ‘Agapanthus Peter Pan’ A compact variety with pale blue flowers NOW £9.99 Buy
Alkanet ‘Anchusa azurea Loddon Royalist’ Intense blue flowers in early summer £5.49 Buy
Price Pruned
Amsonia ‘Amsonia tabernaemontana’ Dense clusters of ice-blue, star-like flowers NOW £5.99 Buy
Beard Tongue ‘Penstemon Sour Grapes’ Greyish-blue flowers with metallic sheen £5.49 Buy
Bearded Iris ‘Iris Blue Rhythm’ Tall variety with cornflower-blue flowers £6.99 Buy
Bearded Iris ‘Iris Fort Apache’ Luscious maroon 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
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
Bog Sage ‘Salvia uliginosa’ Intense blue flowers £5.99 Buy
Price Pruned
Bugle ‘Ajuga reptans Atropurpurea’ Good groundcover for shade NOW £4.99 Buy
Price Pruned
Bugle ‘Ajuga reptans Burgundy Glow’ Multi-coloured evergreen foliage NOW £4.99 Buy
Price Pruned
Bugle ‘Ajuga reptans Catlin's Giant’ Handsome evergreen ground cover NOW £4.99 Buy
Butterfly Collection ‘Butterfly Collection’ Summer-flowering wildflowers £2.99 Buy
Price Pruned
Catmint ‘Nepeta Six Hills Giant’ A hardy catmint with lavender flowers NOW £4.99 Buy