You can rejuvenate an old lawn with new and improved grass growth. Neglected lawns often have patches of dead grass and areas with weed infestation. Competing plants and dead grass must be removed to give a lawn the best possible chance of bouncing back. Empty spots can be replanted with matching grass seed and fertilize to speed their growth. Water, sunlight and time complete the job and make an old tired lawn look new again.
Rake the grass vigorously with a lawn rake. Pull out weeds and dead grass as you go. Wear garden gloves to prevent blisters.
Cut out entire sections of dead or unwanted grass with the blade of a shovel. Separate the roots from the soil. Lift out the cut patches and discard them far away to avoid regrowth.
Spread topsoil on the bare lawn patches to bring the dirt level up to the surrounding areas. Sprinkle the matching grass seed variety onto the topsoil according to the directions on the container. Cover all the new grass seeds with a ¼-inch of topsoil and an inch of straw.
Spray starter fertilizer on the newly seeded areas and the surrounding lawn. Keep the soil beneath the lawn moist with a hose or a full-coverage sprinkler.
Remove the straw from the new growth areas after two weeks have passed. Avoid walking on the grass until all the new seedlings have grown 3 inches out of the ground.