Planting potatoes
Plant your chitted potatoes when the soil starts to warm up, usually in mid- March to early April. Start by digging a trench 7.5 – 13cm (3-5 inch) deep, add a sprinkling of fertiliser to your trench before you begin planting. Plant early potatoes about 30cm (12 inch) apart with 40-50cm (16-20 inch) between the rows, second earlies & maincrops about 38cm (15 inch) apart with 75cm (30 inch) between the rows. Handle your chitted seed potatoes (tubers) with care, gently setting them in to the trench with the shoots pointing upwards, be really careful not to break the shoots. Cover the potatoes lightly with soil & fill in the trench. As soon as the shoots appear, earth up each plant by covering it with a ridge of soil so the shoots are just buried. You need to do this at regular intervals creating a small mound around the plant to prevent any sun damage or element damage.
Harvesting
Your home grown potatoes should be ready for lifting from June until September, depending on the varieties & the growing conditions. Earlies can be lifted & eaten as soon as they are ready, this will be when above -ground growth is still green,& usually as soon as the flowers open on the plant. Second & maincrop varieties can be kept in the ground much longer, until late September, even though above-ground growth may well be looking past its best. Two weeks before you lift the crop, cut the growth off the plants at ground level. This should give the skins of the potatoes sufficient time to toughen up, making them far less prone to damage from lifting and easier to store.
Blog written by Mark Burton (Allotment Secretary)
