Master Nursery, Bumper Crop, 1.5 CUFT, Organic Growers Mix, Carefully Formulated Growing Medium Made With All Natural Ingredients Including Our Exceptional Composts, Result Is A Soil Designed To Provide Container Plants An Ideal Balance Between Water Retention, Soil Texture, Drainage & Aeration, Ingredients Include Mycorrhizal Fungi Which Form Symbiotic Relationships With Plant Roots Allowing The Uptake Of More Nutrients From The Soil & Increase Plant Tolerance To Environmental Stress & Play A Role In Soil Aggregation & Stimulation Of Microbial Activity, Depending On The Plant Species, Growing Practices & Conditions, Benefits To Plants Can Include Increased Uptake Of Phosphorous, Other Key Ingredients Include Worm Castings, Lobster & Crab Shell, Kelp Meal, Dehydrated Poultry Manure, Peruvian Seabird Guano, Sphagnum Peat Moss, Composted Cow Manure, Aged Bark, Dolomitic Lime & Coir.