Blueberry Potting mix - Professional mix

Our nursery has been growing blueberry plants for over 30 years. Each year we sell over 3000 blueberry plants and this is the soil we use. Trusted by professional blueberry growers everywhere, this blueberry potting soil mix is what works best for both the growth and performance of their plants.  Components include:30% - 3/8" minus- Fine Fir Bark, unscreened. 30% - Fir sawdust16% -  3/8" minus Natural Cascade Mountain Volcanic Pumice.  Unscreened. 12% - Peat Moss12% - PerliteAll natural, relatively light weight.  Available in 15 Oz., 10 Cups, 5 Quarts, 3, 6, 12, 18, and 24 Gallon volumes. 15 Ounce,10 cup, and 5 quarts, are shipped USPS.   3 Gallon quantities are shipped USPS or UPS. 6, 12, 18 and 24 gallons are shipped UPS.  - Our 10-cup box will fill 1.33 trade gallon containers.  - Our 5 Quart box will fill 2.5 trade gallon containers. - Our 3 Gallon box will fill 6 trade gallon containers. - Our 6 Gallon box will fill 12 trade gallon containers. - Our 12 Gallon (2 boxes) will fill 2