Lawn Mulching Techniques

Grass Clippings

• Forget bagging grass clippings when mowing the lawn and leave the clippings in place. They'll decompose within a few days, providing nitrogen to the lawn and reducing fertilizer use by one-third to one-half, according to Colorado State University. Grass clippings also encourage microorganisms that eat thatch and may also conserve water. Best of all, by leaving clippings on lawns, you'll reduce landfill waste and save time and money. Mow lawns at least weekly to maintain the grass at 2 1/2 to 3 inches high. If the lawn grows longer, bag the clippings because they won't decompose well.

Compost

• Top-dressing annually with a thin layer of compost can improve soil texture and drainage, provide nutrients and reduce water needs. Spread 1/4 to 1/2 inch of compost over the soil with a shovel. Rake the material evenly and water the lawn well. Commercial compost applicators are available for large lawns, but a wheelbarrow, shovel and rake is usually sufficient for most home lawns. Apply top-dressings in the spring or fall when temperatures are cool and the soil is moist.

Leaves

• As municipalities institute bans on yard waste in landfills, many homeowners seek strategies for composting deciduous tree leaves in the fall. One of the simplest solutions is to leave them on the lawn as a mulch. Use a rotary mower to mow over dry leaves in the fall, making several passes to thoroughly shred them. Water the lawn after shredding the leaves and continue to mow weekly to distribute the leaves throughout the lawn. The leaves break down within three to four days, providing small amounts of nitrogen and organic matter back to the soil.

Considerations

• When applying any organic matter to the lawn, keep in mind that the goal is for the material to break down quickly. Avoid mowing wet lawns or shredding wet leaves because they'll become matted and slimy, reducing oxygen to the lawn. Buy high-quality compost that contains manure and plant waste, or make your own.