Crabgrass is a pesky annual weed that comes back from seed each year. Because it must germinate from seed, it is easy to control by applying a pre-emergent pesticide that will kill the seedlings before they get the chance to grow. A great rule of thumb for timing this application is the late spring when Forysthias are in bloom. Not sure when the best time is? Please call or email us and we’ll be happy to help!