Hi-Yield 32118 Calcium Nitrate Plant Food, 4 lb, Granular, 15.5-0-0 N-P-K Ratio

Contains two important nutrients that plants need, calcium (Ca) and nitrogen (N), Hi-Yield calcium Nitrate is used primarily in vegetable gardens, particularly for tomatoes and peppers, in the prevention of blossom end rot. Blossom end rot is a common problem with tomatoes. It is a physiological disorder (not a disease) caused by a lack of calcium. When fruits are enlarging rapidly, sufficient amounts of calcium fail to reach the end of the fruit resulting in a deficiency of calcium in the developing fruit.