"I'm a simple person," says a man who goes by the name Tree. "We're going to grow food here, and then we're going to give it away to people who need it." On a 1/3 acre lot in San Francisco, known unofficially as the Free Farm, volunteers cultivate the land and its given freely to anyone who wants it. Since 2008, Tree has donated more than 6,000 pounds of food on Sunday mornings.
