The most bothersome issue can be fallen leaves blanketing your lawns and walkways; however, gardening specialists strongly advise against throwing the leaves away, suggesting one crucial task instead, reports the Express. Still, I like to keep things neat and tidy, so I rake any fallen leaves into the garden beds. Fallen leaves, or what's known as "leaf mould," proves vital for your garden as they contain few nutrients but serve as superb soil improvers. How to create mulch using fallen leavesTo produce leaf mould, gather fallen leaves in a composting bin or enclosure and allow them to decompose. This not only shreds the leaves but also adds grass clippings, enhancing the nutrient value of the leaf mould.