This is our best seller. It is more than enough for 60 transplants. Simply put a cup in the planting hole, add your plant and fill in around it. It will not burn roots - ever! For existing plants and trees, add 1/2” around the base and water in. For best results, apply every 4-6 weeks throughout the growing season. With the high content of microbiology, it makes a very good compost tea. For more information, please feel free to call us.