Despite the frosty weather, spring is just around the corner. Callahan Landscape Services will be starting aeration and topdressing on warm season grasses (Bermuda and Zoysia) as soon as spring arrives. All lawns benefit from aeration annually. There are many benefits to topdressing your lawn including: increased infiltration rates, increasing root depth and density, and allowing more air to enter the soil. Topdressing also can fill uneven areas in your lawn. Typically we apply between 1/4 to 1/2 inch of a recommended USGA sand mix that is screened free of all debris.