FoxFarm Cal-Mag (1 gal)

FoxFarm brings you Gringo Rasta® Cal-Mag to use in the garden to strengthen cell walls and aid in fruit development.

• OMRI listed and a registered CDFA organic input material
• Contains 3% calcium and 0.9% magnesium
• Derived from calcium carbonate, magnesium sulfate and soy protein hydrolysate