I know that the best time to overseed a lawn is in the fall, but can it be done in very early spring? I know that the seed competes with crabgrass and other lawn weeds but I have a new customer that wants it done. It's not a big area, probably about 900 sq.ft. of lawn. (I haven't measured it yet, just a rough estimate). I know how to do it, as I have been doing it for a few years, but I have never done it in the spring.