Blue Bayou Pampas GrassFinally, a pampas grass that has a more landscape friendly size! 'Blue Bayou' produces the same white plumes as does tall pampas grass, but matures at 5 6' tall and wide as opposed to up to 8' or more for the species! BLUE GREEN foliage provides additional interest to a grass that's perfect for creating privacy, as a filler for a large container planting, or as an accent to any sunny landscape. Plants and plumes look good until November or December,