I ask this question because my ztr was literally wading through 18 inches of extremely thick St. Augustine. We discovered a curb that was over grown by 2 feet. The backyard was an obstacle course of plants, landscape timbers, and sugar sand. My ztr got stuck twice in the sand. Not to mention the entire property is on a slope of about 30 degrees. The weeds were so thick I wanted to use my chainsaw instead of string trimmer. Code enforcement had finally made him do something. Thankfully the price is right.