This Miracle-Gro Indoor Potting Mix is the perfect blend of nutrients and ingredients to help you grow healthy plants indoors. It contains a mix of sphagnum peat moss, compost, and perlite to provide an ideal amount of drainage and aeration. The mix also contains fertilizer for extra nutrients and to ensure that your plants get the nourishment they need. With up to 16 quarts of potting mix, it's enough to pot multiple plants at once. Make sure your indoor plants get the best start with Miracle-Gro Indoor Potting Mix.