In its fourth year of operation, using the SPIN Farming method, the Somerton Tanks Farm produced over $68,000 in gross sales growing high value vegetables on a half-acre—in Philadelphia, the fifth largest city in the U.S. By pushing the physical and philosophical boundaries of agriculture, it is achieving a level of productivity and financial success that many thought impossible. And it’s getting others to view the role of agriculture— where and how it is practiced—differently.