Radishes grow well in most soils, but prefer rich, moist free draining soils. Sow seeds at regular intervals from spring through summer in well cultivated soil. Sow seeds very thinly 1cm (0.5in) deep in drills 15cm (6in) apart.
Thin out the seedlings to 20mm (3/4 in) as necessary, Ready to harvest from 21 days from sowing.