4oz Calcium Carbonate Fertilizer | Oyster Shell Powder | All Natural Fertilizer | 35% Calcium | Bulk

This natural oyster shell powder delivers 35% calcium carbonate to support healthy plant growth across vegetables, flowers, and shrubs. Made from crushed oyster shells, it enriches soil structure, helps balance pH, and prevents common issues like blossom end rot in tomatoes. A sustainable, all-natural option for gardeners looking to nourish their plants without synthetic additives.