Fox Farm Marine Cuisine® is the perfect fertilizer for evergreens, azaleas, camellias, rhododendrons, dogwoods and vegetables. This superior blend features Pacific Northwest sea-going fish, crab meal, shrimp meal, bat guano and earthworm castings, nature's finest soil amendment. The microbes in your soil will benefit from the Crab and oyster shells and become healthy soil ecosystem. While decomposing, these oyster and crab shells create ammonical nitrogen which repels harmful adult nematodes. Use only twice a year, in early spring and again in late summer. Features a reusable bag to last the entire growing season! Quantity: 4 lb.