I had very heavy clay loam soil, which I amended with coarse sand. Till the soil, pile 1.5" of sand on top, sprinkle dolomite lime and bone meal generously, and till it in. Organic matter is also helpful. I always form my soil into raised beds. You can get improved soil nearly a foot deep that way. The range of plants that will grow in sandy loam soil is amazing. Tulips do best in full sun. No water in Summer. A light sprinkling of 5-10-10 fertilizer or bone meal is very helpful in early Spring. People say bone meal isn't good, but my bulbs love it. Apply more lime every year. Here is a photo of a group of Colchicums in Fall of 2010. I started out with about 6 bulbs in 2006. http://i232.photobucket.com/albums/ee69/…