Living a green lifestyle? Leave the Leaves! Traditionally, leaf removal has entailed three steps: Rake leaves (or blast them with a blower) into piles, transfer the piles to bags and place the bags out to be hauled off to a landfill. Yet, increasingly, conservationists say these actions not only harm the environment but rob your garden of nutrients while destroying wildlife habitat. The alternative? “Let fallen leaves stay on your property,” says National Wildlife Federation Naturalist David Mizejewski. According to the U.S. Environmental Protection Agency, leaves and other yard debris account for more than 13 percent of the nation’s solid waste—a whopping 33 million tons a year. Without enough oxygen to decompose, this organic matter releases the greenhouse gas methane, says Joe Lamp’l, author of The Green Gardener’s Guide. In fact, solid-waste landfills are the largest U.S. source of man-made methane—and that’s aside from the carbon dioxide generated by gas-powered blowers and trucks used in leaf disposal.
For gardeners, turning leaves into solid waste is wasteful. “Fallen leaves offer a double benefit,” Mizejewski says. “Leaves form a natural mulch that helps suppress weeds and fertilizes the soil as it breaks down. Why spend money on mulch and fertilizer when you can make your own?” Removing leaves also eliminates vital wildlife habitat. Critters ranging from turtles and toads to birds, mammals and invertebrates rely on leaf litter for food, shelter and nesting material. Many moth and butterfly caterpillars overwinter in fallen leaves before emerging in spring. Let leaves stay where they fall. They won't hurt your lawn if you let them decompose and mow over them in the spring, which will help to turn it into natural mulch.Covering garden beds with a thick mulch in the fall can alsobe an effective and simple way to build soil fertility,Rake leaves off the lawn to use as mulch in garden beds, or pile around trees to help protect the roots. | 
