Roots Organics B2 Professional Growing Mix is a baled potting soil conditioner and amendment designed to be a perfect base mix. Well balanced between water holding capacity and drainage, ready for you to pick it up, mix it up and grow. The control is in your hands. Roots Organics B2 is composed of only outstanding ingredients for excellent performance as a foundation for any of your custom mixtures or as an amendment to enhance drainage and increase organic content in your garden.