Here's a good essay from the folks at Native American Seed in Junction, Texas about the importance of using native plants in our landscapes to help undo the damage that we've done to our environment.
It's well worth a read, and while you're there, shop for seeds for native plants and grasses.
Have a Happy Food Independence Day on Sunday,and remember to Grow Organic, Demand Organic, and Buy Organic!
And plant natives. :-)