GREEN PLANET - ROOT BUILDER - 10LRoot Builder is a root zone inoculant comprised of specifically selected beneficial bacillus bacteria. It promotes a healthy and active root zone at all stages of growth. Registered Fertilizer with Health Canada: 2019125A Root Builder is formulated with extremely active beneficial organisms that deliver an abundance of benefits to your plants root zone. Root Builder introduces two key forms of beneficial bacteria to your grow medium: Bacillus