Natural from a single site, certified 100% organic with 73 trace elements. It was develop in conjuction with the Federal EPA in the 'Design for the Environment'. Used by the Soil Foodweb in their compost tea.
My lawn guys over fertilized a few spots in my yard. I had 5 patches of burnt grass. I was told TurfPro would break down the fertilizer fast. It did! Grass filled in those spots very quickly After I sprayed the liquid on my lawn.