Dr Earth 738 50-Pound Organic Rhododendron, Azalea and Camellia Fertilizer A superior blend of cottonseed meal, fish bone meal, alfalfa meal, feather meal, mined potassium sulfate, kelp meal, seaweed extract and Pro-Biotic seven champion strains of beneficial soil microbes plus Ecto and Endo Mycorrhiza It is great for many projects in the garden, including use as an amendment for planting ornamental trees, shrubs, and bare root planting Feed Rhododendrons, Camellias, Hydrangeas, Evergreens, Blueberries, Strawberries, and all acid lovers Organic Rhododendron, Azalea and Camellia fertilizer 100-percent natural and organic formula Makes soil more acidic Provides optimum levels of essential plant nutrients, including important micronutrients and minerals Superior buds and blooms