Need some ideas and you guys are full of them. Acer rubrum (50') occupies a prominant position in front of our home, inside the circular driveway. It derives lots of moisture from a drainage gulley. The area has native highbush blueberries, Royal ferns, and is a pleasant place to sit and hang out but I presently have to mow it or weedwack it periodically (a pain). I'd like to come up with a sitting area involving pavers/flagsones; no mortar. I would like to get mosses and other groundcover plants established in between the pavers. I'm not looking for a perfectly level, "formal" surface, more something I don't have to "tend" that will be a reasonably level sitting area and allow snow removed from the driveway and rainwater to filter down through it to the roots of the tree. Have any of you done this sort of thing before?