Grow amazing houseplants with Miracle-Gro Indoor Potting Mix. At Miracle-Gro, a garden is more than plants. We believe it's a chance to connect with our communities, improve our environment, and help you make the most out of your piece of the earth. We're in pursuit of a greener world that benefits everyone, and we make it our purpose to help you achieve that in your garden and beyond. Where to use: Apply our indoor potting mix to indoor potted plants, including common houseplants, tropicals, climbing plants, foliage plants, and flowering plants. How to apply: Select a pot with a drainage hole and fill about 1/3 full with potting mix. Loosen the plant's root ball and place in the pot. Add more mix and press lightly. Water the plant; let it drain. After you plant: Mix should be allowed to dry to the touch between waterings. To avoid soil compaction and replenish nutrients, container plants should be repotted every year or as needed.