Cal-Mag Plus is a specialized plant supplement designed to compensate for the deficiencies in some nutrient fertilizer programs and hydroponic liquid nutrient formulas. It prevents blossom end rot in plants such as tomatoes and peppers and tip burn in lettuce by acting as a catalyst for major elements to work in symbiosis with one another. Cal-Mag is widely used to help prevent dry and withered flowers and fruits and increase water and nutrient uptake. This plant supplement is an excellent addition to your flower and vegetable fertilization routine.