Pampas grass or giant sacaton in zones 4-5?
Has anyone successfully grown pampas grass or giant sacaton in a zone 5 that acts like a zone 4 in the winter winds? I also have native clay soil which I can amend if the cold and winds do not prevent me from successfully growing a tall ornamental grass. Any suggestions for a tall (6'+) grass that will grow in north-central Colorado. I want some kind of FAST growing windbreak.