One of the fastest ways to drop an edge between lawn and planting areas is using concrete edger or paver stones set upright, on edge. Cast from concrete, these stones create the most effective edging if they’re dug into soil so the base sits slightly below lawn level. Keep an eye out for grass creeping around or under concrete edgers. Hand pull or spot spray with grass killer. Look for concrete edgers in a variety of shapes and colors. They give a garden a more formal flair, which looks nice whether it’s lining beds full of flowers, herbs or vegetables.