Plant second early potato crops from March. Prior to planting, 'chit' the seed potatoes by setting them out in a cool, bright position (10C/ 50F) to allow them to sprout. When growing second early potatoes in the ground avoid planting in soil where potatoes have grown for two years in succession to reduce the risk of disease. Prepare the planting area in a sheltered position in full sun on moist well drained soil. Dig in plenty of well-rotted manure. Plant potatoes in rows at a spacing of 37cm (15"). Rows should be set out 75cm (2', 6") apart. Place the seed potatoes into 10cm (4") deep trenches and backfill the soil to refill the trenches. When shoots reach 20cm (8"), mound up soil around the shoots leaving just a few cm showing. Repeat this process after a further 3 weeks. Where space is limited, try growing potatoes in potato bags on the patio. Fill an 8-litre potato bag to just below the top of the bag with good quality compost mixed with some well-rotted manure. Carefully plunge a