This is for 1 gallon, 2 gallons or 3.5 gallons of Low PH potting soil mix. Free shipping. This potting soil has a ph of 5.5 to 6. Ideal for acid loving plants such as blueberries, prayer plants, azaleas, rhododendrons, hydrangeas, etc. Mixed blend of topsoil, sand, cow manure compost, mushroom compost, perlite, sphagnum peat moss, & black screened fines(decomposed pine). This makes a great planting medium for pots and containers. This listing is for 1 gallon @ $16, 2 gallons @ $26 or 3.5 gallons @ $36. Shipped in USPS flat rate priority envelopes or boxes.