Strawberries do best in a rich medium loam with high humus content. Adding compost, peat, or leaf mold to the mix will make your plants even happier. Also, it's a good idea to mix some blood meal and bone meal into your mix before you plant. These will feed the plant and help them get off to a good start. Well-rotted leaf mould is an excellent material to incorporate in soils deficient in organic matter, but any other decayed vegetable matter can be used. The site needs to be well drained. Heavy clay, peaty and very light, sandy soils should be prepared well in advance of planting time.