Go to Lowes. I purchased all natural, additive free topsoil from there for $1.64 for a 40lb bag. I mixed it 50/50 with co-co fiber and it worked out great. There is no type of manure or anything in this stuff. I also went to Lowe's three different times, spoke with three different people, asking them if they carried topsoil that contained no additives, manure, etc. All three times I was directed towards the same bag so the third time, I bought it!