The soil that does well for us is a mixture of 4 ingredients in measured proportions that we get from Lowe’s, Home Depot or the local Garden store. Garden Mix, Garden Soil, Mushroom Mix and Cow Manure. The proportions of each are 2 – 1 -1/3 – 1/3. Daylilies do best when their soil is fairly light and well drained. They do not like wet feet and will do poorly if the soil is too heavy.