Cal-Mag™ Plus is a highly fortified calcium, magnesium and iron plant supplement formulated to correct common deficiencies. Supplementing your preferred nutrient program with Cal-Mag™ Plus is strongly recommended when using reverse osmosis water and when growing in coco coir-based medias to compensate for natural calcium draw. Cal-Mag™ Plus can also be applied as a foliar spray to further enhance growth. A highly beneficial biocatalyst for plants. Botanicare Cal-Mag Plus (2-0-0) is a custom plant supplement designed to correct the inherent problem of calcium, magnesium and iron mineral deficiencies found in most soil fertilizers and some hydroponic nutrient formulas. Now with trace minerals. Increases: • Cell division and plant tissue development • Flower and fruit sets • Water nutrient and carbon dioxide uptake • Growth rates and crop maturity Prevents: • Blossom end rot in tomatoes and peppers • Tip burn in lettuce and cabbage • Dry and withered flower and fruit sets • Chlorosis (yellowing) • Stunted growth rates • Upward leaf curl cultivate