We have found 92 plants that meet your criteria.

Crocus Special Offers
cranesbill
Geranium 'Brookside' cranesbill Deep blue flowers and long flowering seasons NOW £5.99 Buy
New
cranesbill
Geranium 'Brookside' cranesbill Deep blue flowers and long flowering seasons £4.99 Buy
New
cranesbill
Geranium 'Johnson's Blue' cranesbill Elegant blue flowers, good for groundcover £4.99 Buy
cranesbill
Geranium 'Johnson's Blue' cranesbill Elegant blue flowers, good for groundcover £7.99 Buy
New
cranesbill
Geranium 'Orion' cranesbill A taller growing, summer flowering cultivar £5.99 Buy
New
cranesbill
Geranium Rozanne ('Gerwat') (PBR) cranesbill Wonderful, disc-like summer flowers £7.99 Buy
New
cranesbill
Geranium Sabani Blue (Bremigo) (PBR) cranesbill An oustanding geranium with large, blue flowers £4.99 Buy
rough-leaved hydrangea
Hydrangea aspera 'Villosa Group' rough-leaved hydrangea Long-lasting, deep mauve flowers in autumn £14.99 Buy
hydrangea
Hydrangea macrophylla Endless Summer Blue ('Bailmer') hydrangea A profusion of blue mophead flowers £22.99 Buy
lacecap hydrangea (syn. Blue Wave)
Hydrangea macrophylla 'Mariesii Perfecta' lacecap hydrangea (syn. Blue Wave)... Blue or pink lacecap flowers £9.99 Buy
black steel hydrangea
Hydrangea macrophylla 'Zsasa' black steel hydrangea A new dark-stemmed form with blue flowers £24.99 Buy
hydrangea
Hydrangea serrata 'Bluebird' hydrangea Distinctive blue (or sometimes pink) flowers and autumn colour £9.99 Buy
Crocus Special Offers
beardless iris
Iris setosa beardless iris A handsome rhizomatous, bearless iris NOW £6.99 Buy
Crocus Special Offers
Siberian iris
Iris sibirica Tropic Night Siberian iris Velvety, violet flowers with veined yellow throats NOW £7.49 Buy
Siberian iris
Iris sibirica 'Caesar's Brother' Siberian iris Intense violet flowers. Great in reliably moist soil £7.99 Buy
Crocus Special Offers
Siberian iris
Iris sibirica 'Perry's Blue' Siberian iris Looks great planted in bold clumps NOW £6.99 Buy
Crocus Special Offers
Siberian iris
Iris sibirica 'Tropic Night' Siberian iris Velvety, violet flowers with veined yellow throats NOW £6.99 Buy
Crocus Special Offers
bearded iris
Iris 'Jane Phillips' bearded iris A popular variety with blue flowers NOW £6.99 Buy
Russian sage
Perovskia atriplicifolia 'Little Spire' (PBR) Russian sage A shorter form of the popular Russian sage £9.99 Buy
Russian sage
Perovskia 'Blue Spire' Russian sage Violet-blue flowers and silvery foliage. Great planted en masse £9.99 Buy