Nullis
Moderator
Maybe it's because most bagged 'soil'... isn't fucking soil.
It's sphagnum peat, and\or coco coir with perlite and\or vermiculite and\or pumice... some containing humus and\or compost and\or earthworm castings and\or other organic amendments (rock phosphate, bat guano, bone meal, fish meal, chicken manure, etc). The only bagged potting mix that I know of that even comes CLOSE to being a 'soil' would be Ocean Forest because it actually contains sandy loam (sand, silt, clay). The great majority of 'potting soils' are actually soil-less mixes.
It's sphagnum peat, and\or coco coir with perlite and\or vermiculite and\or pumice... some containing humus and\or compost and\or earthworm castings and\or other organic amendments (rock phosphate, bat guano, bone meal, fish meal, chicken manure, etc). The only bagged potting mix that I know of that even comes CLOSE to being a 'soil' would be Ocean Forest because it actually contains sandy loam (sand, silt, clay). The great majority of 'potting soils' are actually soil-less mixes.