when does crabgrass appear?
I treated for crabgrass earlier this spring and am wondering if it worked. I spent DAYS hand-pulling the stuff last fall, pretty sure that I didn't get to it before the seeds ripened, but the churned up soil made it easier to overseed. The grass came in nicely, but I still have some bare patches now. I used a lot of CGM earlier this spring, but it's been a late spring. I plan to overseed again this fall.
So far, I've found exactly ONE sprig of crabgrass, in a flowerbed. If my crabgrass battle failed, would I know by now? I realize that the crabgrass seeds can sprout throughout the summer, but should the first flush have appeared by now? We've had some pretty hot weather.
Central Ontario, zone 5