Before planting, divide the sets into two sizes. Use the largest sets for green table onions and the smaller sets for dry cooking onions. Soil Type Make sure the pH is about 6.5 to 8.5 and that the soil is well drained, firm and not freshly manured. Planting the Onions In early to mid May, you can start to plant your onion bulbs. To ensure you have straight rows you can pull a string across the gardening bed, and push the bulbs into the earth just along the string. Make su