Harris Succulent & Cactus Potting Mix uses a balanced blend of professional quality forest humus, pumice, compost, perlite, peat moss, fish bone meal and limestone. Our fast draining formula helps prevent root compaction to keep your succulent and cacti healthy. Use indoors or outdoors on a variety of cacti, succulent and drought tolerant plants such as Burro’s Tail, Echeverias and Houseleek. Harris Succulent & Cactus is ready to use, pH balanced and packaged in a 4 quart resealable zip bag for ongoing use.