Plant Success Great White Premium Mycorrhizae - 5 Pounds The most advanced mycorrhizal product on the market today Gives plants a strong and developed root system Features a combination of mycorrhizae, beneficial bacteria, trichoderma and plant vitamins Enables plants to break down and absorb nutrients efficiently and effectively Combination of mycorrhizae, beneficial bacteria, trichoderma, and plant vitamins will give your plants a strong and developed root system