Soil Mender Raised Bed Mix is specially formulated to be an ideal soil to use in raised beds and large containers. Raised beds are extremely versatile, very easy to use, and pose many advantages over traditional gardening. This product is composed of all-natural ingredients - organic topsoil, composted cotton burrs, coir, expanded shale, lava sand, granite sand, basalt, humate, montmorillonite & diatomaceous earth.