Gardening can be a gentle and rewarding outdoor pastime for people of any age; working conditions outdoors are relaxed, colorful and can generate a sense of fulfillment in gardening enthusiasts as well as professional landscapers. Flowers and shrubs spring forth in near-infinite variety, and experienced hobbyists often report that they find gardening to be a hobby that requires creativity and logic in equal amounts. Gardeners who live in areas of the country that see autumn leaf fall every year have devised a clever way to return nutrients into their gardens’ soil. In the fall, they rake all the leaves in…