Having started an organic garden in his backyard six years ago, Nakorn “Prince” Limpakuptathavorn, 31, is now best-known for teaching city folk how to go green through the online community Suan Pak Khon Mueang (Thaicityfarm.com). BK chats with the man known as “Prince Veggie” about his journey from homebody to organic farmer, and the ever-hot topic of sustainability.