Basic Bonsai Soil From Buybonsai- 15 Lbs. 2 Gallons BASIC BONSAI SOIL MIXED BY BUYBONSAI FAST DRAINING Prevents root rot, Prevents over watering Aprox 60% Aggregate, 40% composted fir bark fines. Double Sifted, Lava cinder rock and Calcined Clay 1 BAG ABOUT 7.5 POUNDS 2 one gallon bags, If the label does not say Buybonsai, then its not Buybonsai's soil