Calcium & Magnesium

Calcium and magnesium are the secondary nutrients behind the most common garden failures — blossom end rot in tomatoes and peppers, tip burn in lettuce, and the yellowing between leaf veins that means magnesium has run out. Calcium builds cell walls and doesn't move within the plant, so it has to be supplied continuously; magnesium sits at the center of every chlorophyll molecule, which is why deficiency shows as fading color. This collection covers every delivery method: Cal-Mag Plus 2-0-0 for one-step feeding, Calcium Nitrate and Magnesium Nitrate for hydroponic reservoirs, Epsom Salt for fast foliar correction, and Gypsum and Dolomite for amending soil at the source. Every product is CDFA registered, third-party tested for heavy metals, and made in our FDA-registered Madera, California facility. One rule keeps every mix clean: dissolve calcium separately from phosphate and sulfate concentrates — they belong in the same garden, not the same bucket.