A charming duo producing masses of attractive sky blue and cool white flowers, from mid to late summer. Ideal for creating a relaxing drift of colour, and bringing borders back to life when all around them are looking tired. Height 40-45cm (16-18in).

Sow March to May outdoors where they are to flower. Prepare the ground well and rake to a fine tilth before sowing. Sow in shallow drills 6mm (¼in) deep in rows 30cm (12in) apart.

hen large enough to handle, thin out seedlings to 15cm (6in) apart, to allow plants to bush out for a spectacular late summer display.

Prefers a well drained soil in a sunny position.