Garden implements like lawnmowers, pruning shears, and garden spades, are essential for efficiently tackling backyard maintenance projects. However, when you regularly use gardening tools, they get dull. Blunt or dull gardening tools make it difficult to crisply trim grass, prune trees or shrubs, and cut through the soil. Learn how to sharpen garden tools and conquer your backyard to-do list! Sharpen Lawn Mower Blades for a Crisp Cut A sharp lawn mower blade resting on a green lawn.