If you want a thick, green lawn in spring, the truth is this: winter matters far more than most homeowners realize. Across Oklahoma City, Edmond, Guthrie, Cashion, and Crescent, we see the same frustration every year. Lawns that looked “fine” all winter suddenly wake up thin, patchy, or full of weeds once spring arrives. Homeowners assume something went wrong recently — but the real damage usually happened months earlier. There are three winter mistakes that quietly ruin law