GS Plant Foods Cal-Mag 420 Dry Super Concentrate Makes 420 Gallons of Nutrient Solution 18 Ounces Calcium/Magnesium Fertilizer

- Completely water soluble powder that makes 420 gallons of nutrient solution per container. - Plants require both primary nutrients and secondary nutrients. Cal-Mag 420 is packed with secondary nutrients, it contains Calcium 13%, Sulfur 4% and Magnesium 3%. - Beneficial to plants throughout all growth cycles and easily mixes with water to use during irrigation or as a foliar spray. - Easy-To-Use, perfect for all stages of plant growth, formulated for use in all soil, container, coco and hydro growing.

Product description