Supplement your existing nutrient programs in reverse osmosis water, or when growing in soil or coco coir-based media, to compensate for a natural calcium draw with Botanicare Cal-Mag Plus. Formulated to correct common deficiencies, Botanicare Cal-Mag Plus is a highly fortified calcium, magnesium, and iron plant supplement. It contains a 2-0-0 NPK and can be mixed in with regular waterings or applied as a foliar spray to further enhance growth.Highly fortified calcium, magnesium, and iron plant supplement formulated to correct common deficienciesSupplement your existing nutrient program with Cal-Mag PlusTo Use: Mix well and use with every watering, as needed, for enhanced growth apply as a foliar sprayFor use in containers, coco, hydrogardens, and when growing in soilContains formulation of 2-0-0 NPK