Best grasses for Atlanta area?
My late summer/early fall garden seems to be lacking color. I have knockout roses, dahlias, echinacea, rudbeckia and agastache flowering, but lots of big stretches that are just green (shrubs that aren't currently flowering).
Aside from adding some more late summer flowers, I think I should add some grasses.
I'd like to use some US natives, but i presume most are native to the west/prairies, which is a rather different climate. Last fall I planted a Muhly grass and it didn't come back in spring -- does this grass typically not do well in this area, or should I give it another try (I'd love to grow it, its beautiful).
Any other suggestions for grasses that do well round here, and are quite "showy" in late summer/fall? I am looking for anything in the 3-6' height range.
Also a question about non-native grasses - are any actually invasive here? I'm OK with planting non-natives as long as they are not thugs.
Thanks very much!