Onion Ailsa Craig is well known for being a showstopper! Easy to sow and grow once established it will produce high yields of quality onions – large in shape and mild in flavour. The perfect choice for the kitchen garden or allotment. Can be sown from January through to April for crops in August / September. Onions are a versatile vegetable which have a wide variety of culinary uses.Direct sow onions outdoors in spring on any firm, well drained soil in full sun. Sow thinly at a depth of 1cm (1/2") and a distance of 30cm (12") between rows. Prepare the planting area several weeks in advance by incorporating some well rotted garden compost to improve drainage and soil fertility. Avoid planting onions on freshly manured soil. On particularly wet ground, try growing onions in raised beds. When large enough to handle, thin onion seedlings to 10cm (4") apart for medium sized bulbs, or at a slightly wider spacing if larger bulbs are required.Alternatively sow onion seed indoors in module