This potting soil is constructed of a blend of decomposed pine and fir needles, decomposed oak leaves, and clay soil from decomposed granite. This mixture is made of ingredients that are as close to the soil that is naturally occurring in the ancient groves that we can reproduce outside of the groves. One bag of this potting mix contains 3 quarts. If you live in a location far from California you can probably save money when ordering this item if you phone in the order. This item can be shipped by Priority Flat Rate, UPS Ground or Fedex Ground to save money. If you live far from CA the website might not offer you those options but we can by phone at (559) 349-0081.