Miracle-Gro, 4.5 LB, 9-4-12, 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 & LongerLasting 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.