Give your Beds a Boost with Greensand. Greensand is mined from natural deposits of glauconite. These deposits are of marine origin and are composed primarily of iron–potassium silicate, which gives them a bluish-green color. Potassium is an essential nutrient needed by all plant life. Other valuable properties of Greensand are its ability to loosen clay soils, bind sandy soils, and increase the water-holding capacity of all soils, and is an exceptional soil conditioner for flower beds, gardens, and lawns.
