Direct sow coriander seed outdoors from April to July in light, well-drained, fertile soil, which has been raked to a fine tilth. Choose a position in full sun. Sow seed thinly at a depth of 1cm (1/2″) in rows 30cm (12″) apart. When large enough to handle, thin seedlings to 23cm (9″) apart. Make regular sowings for a constant supply. Can also be sown in late summer for winter use, with cloche protection and full light for quality foliage production.