E.B. Stone Organics Cactus & Succulent Potting or Planting Mix is a versatile mix that can be used as both a soil amendment or as a ready-to-use potting soil. Our mix is blended for all types of outdoor and indoor succulents and cactus. All succulents and cactus require soil that drains extremely well, which is why we've added extra pumice for optimum drainage. Ready to use right out of the bag. Ingredients: Pumice, Aged Fir, Aged Redwood, Lava Rock, and Sand.