This mix is composed of 3 essential ingredients: Screened Topsoil, Compost Mix, and Peat Moss (Mix ratio 3-1-1.) We chose compost mix and peat moss to be used as a central ingredient for our garden soil due to its fertilization and water retention properties, making this an ideal garden soil. As the topsoil used in this mix is a natural product, there may be traces of weed seeds within and it is not a guaranteed weed-free product.