8 Quart Bag of Happy Harvest Potting Soil All natural professional potting soil with ample organic nutrients We use a combination of peat, vermiculite, perlite, coco coir, gypsum, lime, kelp, worm castings and a few other secret ingredients Happy Harvest provides proper aeration in the soil which will stimulate healthy root growth Much better then fox farm or happy frog for a better price The pH on Happy Harvest is 6.5 to 7.5. This is acceptable for almost all plants.