Keep your plants healthy with the GROW!T Super Coarse #2 Perlite for Hydroponic Greenhouses Gardens 4 cub. ft. This 30 lbs. bag of perlite is a great way to grow succulents, nurture seedlings, or improve your potting soil quality. This hydroponic succulent soil is extra-coarse #2 size that helps break up heavier soil easily and provides superior aeration, drainage, and nutrient distribution. Naturally sourced, the potting soil perlite is odorless and sterile with a pH of 7, making it safe and ideal for use in all mediums. With 4 cub. ft. of perlite, you'll have more than enough material for greenhouse grow pods, patio container gardens, your backyard herb garden, desktop orchids, and your vegetable patch to keep everything green, healthy, and flourishing all-year long.