Yes — you can overseed a weedy lawn without killing the weeds first, especially in late summer or early fall when weed pressure naturally declines. But for best results, thinning or spot-treating the worst weeds beforehand and improving seed-to-soil contact will give your new grass the upper hand. Introduction: Seeding Into a Messy Lawn Many...
Most Northeast Ohio lawns begin showing visible results from overseeding in 7 to 14 days, depending on grass type, soil temperature, and watering consistency. Full results can take 4 to 8 weeks, especially in cooler fall weather. Introduction: The Waiting Game After Seeding You’ve done the hard work—spread the seed, watered diligently, and stared at...