Not sure about foot traffic yet. I've started by just putting in sedums at the edges of the patio and plan to let them creep toward the center if they will. Likely some will be better than others at that. So far, weeding between the flagstones has not been too daunting - we laid a pretty thick bed of gravel and sand so mostly I'm just getting those tenacious weeds (like dandelions) that will try to grow just about anywhere.
