Choose white and blue for summer chic

BUDDLEjA DAVIDII ‘EMPIRE BLUE’

Deciduous shrub with arching branches of dense fragrant blue flower spikes Jul-Sept loved by butterflies. Prefers sun or part shade in moist, welldrained soil. H and S2.5m (8ft)

ROSE ‘BLANCHE DOUBLE DE COUBERT’

Rugosa rose with white semi-double flowers June-Oct, with old rose fragrance. Prefers sun or part shade in moist but well-drained soil. H1.8m (6ft) S1.5m (5ft)

SALVIA NEMOROSA ‘CARADONNA’

Clump-forming perennial with violet-blue flower spikes June-Oct. Aromatic foliage. Grow in sun in a moist, welldrained soil. H50cm (20in) S30cm (12in)

DELPHINIUM ‘PACIFIC HYBRIDS’

Biennial blue spires with semi-double flowers in a choice of blues and whites, flowering JuneAug. Prefers sun and moist welldrained soil. Needs staking and slug defences! H1.7m (5½ft) S45cm (18in)

LEUCANTHEMUM SUPERBUM

Shasta daisy with large white flowers Jun-Sept. Prefers a site in sun or part shade, in moist but well-drained soil. Free-flowering. Double and shaggy flowered cultivars available. H and S45cm (18in)

GERANIUM ‘ROZANNE’

Reliable hardy perennial with blue cup-shaped flowers June-Sept. Good under roses and excellent as path edging. Sun or part shade in moist, well-drained soil. H60cm (2ft) S80cm (32in)