Randall Collins had spent all his life applying practical skills to achieve results. As an accountant, he was used to organization, analysis, and responsibility. After he retired, he found himself with a gap in his life; he wanted to be productive, but he'd had enough of being answerable to a boss or a client - he wanted to work on his own terms. Like many people, he turned to gardening and found it to be a compelling, fascinating world. For him,...