Moss plants have very short root systems designed to anchor them to the ground or other surfaces. Moss gathers nutrients from the air and from rainwater, and can grow on any surface, even those without soil. Although moss is usually located near riverbeds, on rocks or on logs, it can invade lawns as well. To remove dead moss from a lawn, you only need a rake as the moss sits on top of the lawn rather than extending deep into the soil.
Rake the surface of the lawn, starting at one corner and working your way across the entire lawn. In most cases, a traditional garden rake is effective, but you may find that a wide-tooth rake combs through the grass easier. Continue raking the lawn until you have raked up all of the dead moss.
Put on gloves and a face mask. Pick up the dead moss and place it into a trash bag for disposal. If there is a large amount of dead moss, use a shovel to scoop it up.
Mow the lawn very short, so that the grass blades are no higher than 1 inch tall.
Purchase grass seed and consult the packaging for the proper amount to apply for your size lawn. Use the amount listed for over-seeding, not a full lawn application.
Place the proper amount of grass seed into a seed spreader. Walk across the lawn while turning the hand crank on the spreader to dispense the grass seed.
Water the grass seed with 1/2 inch of water daily until germination occurs.
If evidence of new moss growth occurs, apply a liquid or granular moss killer to the affected areas only.