Midwest Hearth Cactus Succulent Potting Soil is a ready-to-use potting soil mix. It has been specially formulated with a soil mix combination of organic peat moss, perlite and vermiculite. This formula provides excellent rooting and growth of your Cacti and Succulents. All succulents do not grow in sand. Once reclaimed, the richness of desert lands are highly productive because of its organic matter and porous structure. Since succulents like to be watered but can't survive standing water, it is important that water must be allowed to drain away. A weight and color change in this potting soil from dark brown to light brown assists you in deciding when to water.