Containing no harmful synthetic chemicals, this all-purpose mulch and soil amendment mixes with your native soil to help loosen clay and adds mycorrhizae for strong root development to help plants grow full and lush. Mix it with native soil and use it for a variety of flowers, shrubs and trees. Adding G&B Organics soil building conditioner to your soil helps aerate it, allowing it to retain water more efficiently. You can also use G&B Organics soil building conditioner as a mulch on top of the soil for additional water conservation, keeping the soil cool and moist.