Join Date: Dec 2011
Location: Rockport, Texas
I wouldn't use organic soil mix, because the organic component will break down eventually and need to be replaced. Also, you can't be certain what it is (e.g., peat moss, cow manure, generic compost, etc.). Instead, the key word to look for is topsoil, with nothing added. Topsoil should be mostly mineral, with just some organic matter. It will say topsoil on the bag. This will need to be capped with about 1" sand.