3.5 Gallons Aged Medium Fir Bark - 1/2" minus, has not been screened and may contain some fines. Used as a natural organic component in soil mixes... For bonsai, succulent, cactus soil mixes... mix with compost, peat, pumice, perlite, and lava. For seed starting mixes... mix with peat, perlite and fine pumice. For hanging baskets and containers...mix with peat, perlite and 3/8-1/16 pumice. We ship by Priority Mail. Each order is hand packed and bagged with a reusable tie for easy storage after you have used part of the bag. Our box contains 3.5 Gallons dry measure. It will fill 7 one gallon nursery pots. We are a commercial Wholesale / Retail Plant Nursery with over 16 years mixing specialty potting mixes. Check out our other listings of custom potting mixes to select the perfect mix for your plants. Medium Fir Bark can not be combined with other items for combined shipping. Scenic Hill Farm is a licensed Oregon nursery -- license # L0170090NG.