BioBizz All-Mix is a 100% organic potting soil. All-Mix has long been referred to as the Rolls-Royce of soil mixes containing everything a plant needs for lush, healthy growth. Virtually all soil products encourage beneficial microbial activity in the root-zone. This increases yield and root-health. For a really flourishing microherd we highly recommend using Ecothrive Neutralise to avoid the chlorine/chloramine in tap water from inhibiting, or even killing, the friendly microbes, plus a quality beneficial inoculant such as Ecothrive Biosys when growing in soil. For an extra kick, try Ecothrive Charge too!