Big Foot Granular 2 lb is the very first all-in-one mycorrhizal product to include biochar, worm castings, and high performance mycorrhizal fungi, perfect for your plants. Mycorrhizal fungi form a symbiotic bond with plant roots creating a microbial web. The microbial web accesses and absorbs water and vital nutrients. Mycorrhizae has been utilized by landscapers, farmers, nurseries, innovative hydroponic and home growers, soil media manufacturers, professional horticulturalists, and worldchampion pumpkin growers. Now it's available to you! Effective. Safe. Superior. Big Foot. Planting Spread granular evenly around the sides and bottom of the planting hole to maximize root contact. 2 lb of granular can treat up to 1000 small seedlings.