Fertilizer Additives - Oyster Shell Calcium

This is a pellet size crushed oyster shell, great source of calcium for Paphiopedillum orchids. Heat-treated for purity. All-natural and high-quality source of the essential plant nutrient calcium, helping prevent calcium deficiencies that can diminish plant development Ancient oyster shells are carefully harvested and then ground into pellets, providing a sustained release of this valuable nutrient Oyster Shell is great to add Calcium a very important nutrient to the biological processes of growing plants and aids in improving structure of soils and building optimum. Ingredients: pellet-sized crushed oyster shell and coral calcium. Use a pinch amount over the growing media of Paphiopedilum Orchids. Repacked for your convenience in 8oz or 1/2lbs resealable bags., you'll really need a small amount.