The Miracle-Gro 4.5 lb. Shake 'N Feed Tomato Fruit and Vegetable Plant Food contains vital micronutrients, plus added natural ingredients, to nourish above and below the soil. It contains kelp, earthworm castings, feather meal and bone meal in an all-in-one particle. Added calcium helps form stronger cell walls, producing better quality and longer-lasting fruits and vegetables versus unfed plants. Plus, it helps prevent disorders in edible crops commonly associated with calcium deficiency. You can use it anywhere: in-ground and in containers with continuous feeding for up to 3 months. Feed your plants with the help of Miracle-Gro Shake 'n Feed Tomato, Fruit and Vegetable Plant Food.