Monterey Epsom Salts, 4 lbs.
Helps release locked-up calcium already present in the soil.
Epsom Salts are a great supplement for use when plants are showing signs of a calcium or magnesium deficiency. They contain a lot of natural magnesium, and for plants, magnesium and calcium are very closely related. They need one to efficiently use the other, and the addition of Epsom Salts can help release locked-up calcium already present in the soil. 4-lbs container with a nearly unlimited shelf life.