Thyme springs to mind as a plant that is planted in walkways. Don't know how it
would do in you climate. I doubt that it is a native and I don't know how
invasive it would be. You might try looking around for a native plant society
in your neighborhood and posing the question. If you are in the US, you might
also try the county extension office.
If you have enough shade and an acid soil, I like moss.
Among the plants Jeff Cox suggests in Landscaping with Nature are chamomile
(Chamaeleum nobile) and mother-of-thyme (Thymus serpyllum).
Susan Tillery
Marc wrote: > Grass is a common plant used in > turfstone. But I'm looking for something native that will use less water. > The plant would be driven on, but would not be compressed. leaves and > branches that extend beyond the edge of the holes would be crushed. >