I hope the people commenting about how great this is have really tried it for a few years. In my experience, living in the dry western U.S., it's not that great. You go from a cheery bright green lawn that only needs a quick mowing once a week to a bunch of drab desert plants and the need to do some back breaking hauling and spreading of wood chips every spring to keep the weeds (you know, also "native" plants) from growing. And as others have said, it's not usable for anything other than looking at or for doing more yard work. No soccer or frisbee among the shrubs. People pointing out that you can still mow your "prairie grass" down to a usable lawn must not live in the western US. The "native" "grass" here is all sagebrush and a variety of thorny things.