Building the right soil for cannabis

This helps prevent over fertilization. Organic MixesThese mixes contain organic ingredients which help to support plant growth and act as a buffer. 4 parts topsoil, 1 part peat moss, 1 part vermiculite, 1 part perlite. Moist. Contains medium high amounts of nutrients. Best for hand watering systems.1 part worm castings, 2 parts vermiculite, 1 part perlite. Light weight, high in nutrients.1 part worm castings, 1 part compost, 1 part topsoil, 2 parts vermiculite, 2 parts perlite, 3 parts styrofoam. Holds high amounts of water and air.1 part worm castings, 1 part peat moss, 1 part lava, 1 part vermiculite, 1 part perlite, 1 part styrofoam. Good buffering capabilities.Inorganic Mixes These mixes contain only sterile, inert ingredients and have no nutrient value. 1 part vermiculite, 1 part perlite.3 parts vermiculite, 3 parts perlite, 2 parts styrofoam.1 part vermiculite, 1 part perlite, 2 parts styrofoam, 1 part sand, I part lava, 1 part peat moss (semillas de marihuana).Lava, pea sized gravel or small ceramic beads alone or mixed with a little vermiculite.