Potting mix isn’t one size fits all, but we do our best to simplify things for you. We offer two kinds of potting mixes; one is standard and works for most plants, and the other is best for cacti. These are organic and free from toxic chemicals that could hurt your new friends. The potting mix contains: Compost Pine bark Coir Worm castings Perlite These ingredients ensure moisture levels can be maintained and provide incredible nutrients to keep your plants happy and healthy. Our cacti mix has: Biochar Expanded shale Rice hulls Compost Worm castings Sand Coir While it has some of the same ingredients as our standard potting mix, the cacti potting mix aims to keep your desert plants from being over-saturated by mimicking desert soil.