Bush Doctor Microbe Brew is a liquid microbial inoculant with a complex blend of ingredients specially formulated to help plants achieve enhanced root efficiency and nutrient uptake. Microbe Brew encourages rapid microbial colonization at the root zone and can be used in both hydroponic and soil applications. Use Microbe Brew on your ornamental flowers, evergreens, vegetables and trees. For best results, follow the FoxFarm feeding schedule.