A couple of years ago I switched over to a water-wise, native buffalo grass/blue grama (BG/BG) mix, and the whole endeavor was, quite frankly, a real chore. First, there was the issue of the grass that was already there, which was Bermuda. Now anyone familiar with Bermuda grass knows that removing it from your lawn is not as simple as digging it up. Leave even the tiniest scrap of a root behind and it will bounce back like a rubber ball. It took me months to get rid of it (which I had to do because it out-competes buffalo grass), and I had to compromise my “organic” principles to do it. Even so, sprigs still pop up here and there from time to time.