Drainage isn't the only factor to consider, which is why peat moss, Osmocote Smart-Release Plant Food ($14), and Miracle-Gro Indoor Potting Mix ($13) are all key ingredients for this soil recipe ...
It consists of different sizes of particles, classified as clay, silt, or sand, which make up the soil texture. Thus, bags of potting soil, or garden soil, are intended for in-ground use.