Rich folks love their gardeners, and now Catalino Tapia of the Bay Area Gardeners Foundation is $100,000 richer since he's one of the winners of this years "Purpose Prize" (purposeprize.org), an award from Civic Ventures which is a group funded by the Atlantic Philanthropies and the Templeton Fund. And, what's he going to spend it on? Helping Hispanic kids pay for college and related expense,...