Espoma SPF27 Soil Perfector, 27-Pound (Discontinued by Manufacturer)
Soil perfector is all natural soil conditioner. Permanently improves clay and sandy soils. Improves drainage and moisture retention. Prevents compaction and promotes root growth. Made from 100 percent expanded slate, a naturally derived mineral that is kiln fired in excess of 2000 degree fahrenheit. The resulting lightweight granule contains thousands of tiny storage spaces that hold water, air and nutrients. One time application. Comes in 27-pound bag and covers 10-15 square feet area.