 and prevent weeds. So two to three inches should do the job. Then set your mower higher. Mow that turf at two and a half to three and a half inches when it gets really hot, depending on the time of the year. And in Illinois is on the line with a question about a porch. How can I help you today? Well, I have this problem. This porch is closed in even on the north side, but the north side of it is not finished. And recently I have had this