Performs outstandingly whether sown early or late and does well over a long season. Leek Autumn Giant 2 Argenta matures in October, yet stands ready for harvest right through to May, giving high quality, thick, long and very heavy stems, of excellent mild flavour and yield with few bolters. NIAB Recommended.Leeks prefer ordinary well drained soil in sun or semi shade and can follow early peas or potatoes. Sow seeds in early spring outdoors in a well prepared seed bed. Sow seeds thinly 1cm (½ inch) deep in drills 23cm (9inches) apart.In early summer lift the seedlings carefully and plant 15 to 38cm (6 to 15 inches) apart, making 15cm (6 inches) deep holes and inserting seedlings as far as the first leaf. Then fill the hole with water NOT SOIL. Earth up the stems as growth develops