MiracleGro, 45 LB, 10515, Shake ‘N Feed Calcium For Tomatoes, Fruits Vegetables, Plus Micronutrients, Specially Designed Formula For Fruit Vegetable Plants, Calcium Helps Form Stronger Cell Walls, Producing Better Quality Longer Lasting Fruits Vegetables, Calcium Helps Prevent Disorders In Edible Crops Such As Blossom End Rot, Bitter Pit Fruit Cracking, Dual Action Feeding, Feeds Instantly To Get Plants Off To A Great Start Provides Continuous Release Feeding For Up To 3 Months, Use With Confidence In Ground In Containers