Rohan Marley was so entranced by a shimmering river in the Blue Mountains of Jamaica he bought the land it runs on. “I’ve never seen a river so beautiful,” he said.After finding an abundance of neglected coffee plants on the 52-acre parcel, the son of Bob Marley asked the locals: “How do we grow the coffee?” When they said with chemicals, he shook his dreadlocked head. "I am a Rastaman, I wouldn’t feel right. Chemicals… ruin the root system.”