5 dry quarts Mineral soil. Contains clean fine lava dust and lava sand. This mineral soil is ideal for any Succulent or Cactus Mix requiring a fine particle size...Add 20 to 50 % of it it to pumice, fine granite, perlite or any organic component to make the perfect mix for your plants needing good drainage. Contains no organic matter or peat moss. Not meant to be a planting mix by itself. Approx. 5 dry quarts volume. Neutral PH, all natural. Our potting soils are hand packed and bagged with a reusable tie for easy storage after you have used part of the bag. If your potting mix dries before using, moisten it to keep dust from forming. Dust from any rock or potting soil product should not be inhaled and can be irritating for people with sensitive lungs. We are a commercial Wholesale / Retail Plant Nursery with over 17 years mixing specialty potting mixes. Check out our other listings of custom potting mixes to select the perfect mix for your bonsai or specialty plants. Scenic Hill Farm is a licensed Oregon nursery -- license # L0170090NG