Cal-Mag Special 15-3-18 5lb

- Plant Marvel - Cal-Mag Special 15-3-18 5lb - Cal-Mag Special 15-3-18PLUS contains calcium, magnesium and a very high ratio of nitrogen in the preferred nitrate form. - The nitrate will produce good, hard growth, while the phosphorous levels will keep growth short and compact between leaf nodes. - he stepped-up amount of potash will insure good and healthy cell wall development.