Seed onions for over-wintering. Plant these in the autumn, with the pointy side up, in a seed tray and then plant out in the spring to get big, fresh onions. You can buy 180 grams, 500 grams or 1 kilogram with this order. For every 500 grams you get approx 60 little onion sets, each about 1.5 centimetres in length. Vegetable gardening is a great hobby, gives excellent value for money and you can plant and harvest to your heart's content, not to mention, enjoy eating fresh, healthy vegetables.