Sow 3cm (1") deep singly in 8cm (3") pots of seed compost at 13-16°C (55-60°F) (germination 10-12 days). Grow on in good light and gradually harden off before planting outside in a sunny, sheltered position in May or early June. Grow in blocks rather than rows setting plants 38cm (15") apart each way. Alternatively sow mid to early June outdoors in blocks, setting 2-3 seeds in groups spaced 38cm (15") apart each way. Cover with jam jars/cloches until the young plants develop. Do not grow near other sweet corn. Sowing to Cropping: 14-16 weeks.