I just finished a crop using only Wal mart materials for fun. Turned out fantastic C-99, Northern Lights x Timewarp and SkunkBerry and I used the Premium soil in the green bags. Cost me somthing like $3, very little nutrient balls and easy to keep ph in balance. Gonna pack me some of that Walmart grown C-99 right now come to think of it, Tasty pineapple buds that are potent as hell. Keep in touch if you need help/ K.I.M.