Or, pull the weeds and lay them on the garden or pathway as mulch. If decomposing weeds are too unsightly, cover them with a layer of compost , chips, or bark. Large branches, rotting wood, and other big mulch can be used around trees and in the woodland garden. You can add mulch at least twice a year, preferably in the spring and fall. The biggest challenge in a suburban yard is where to get mulch.
Leaves are an ideal mulch material readily available in the fall.
Do not use black walnut, eucalyptus, or laurel leaves because they prohibit growth. Grass clippings are a great mulch but need to be composted first, or the grass will rot and turn into slime, not soil. It's okay to mulch your annual garden beds, but use a finer mulch like compost or a material that breaks down quickly like leaves or straw. Coarse materials, such as wood chips, are not appropriate for annual beds. Also, many garden pests such as slugs and voles love coarser mulch, including straw, so choose your mulch wisely.