Research sum living soil mixes that can support strong microherds, which will in turn, support strong and healthy plants, which will then give u exceptional medicine. Miracle Gro is shit... Mix yer own man... Worm castings, greensand, dolomite lime, rock phosphate, N- or P-rich bat guano(depending on veg or flower), kelp, fish emulsion(hopefully the kind that doesn't smell like death), perlite, peat-moss, cotton burr, coco coir, blood and bone meal, etc, etc.... All in thre right proportions, is a beautiful thing.... But, above all, FUCK MIRACLE GRO!....