Pyro-Gro Rare Earth Minerals - All-Natural Clay Supplement 8lbs.

Volcanic pyrophyllite clay rich in calcium, iron, magnesium, silicon & sulfur with enhanced minerals & rare earth nutrients. Pyro-Gro helps to revitalize and stimulate beneficial bacteria activity in the root zone, fortify plant cell walls & enhance natural defenses. Reduce environmental stress & over-fertilization toxicity and boost plant vigor, productivity and quality with Pyro-Gro.