Curious, are there any of these plants that grow in a cold environment or one with cold winters (just checked I'm in the level 5a hardiness zone, and my soil has a fair amount of clay under the topsoil), or would this be something that you could grow/cultivate as a potted indoor plant?
Reed canary grass (Phalaris arundinacea) is actually found by me so I suppose that could be found in the wild. Not sure how that would look as a something hanging around the house as a potted plant, however I could probably make a bit of garden space for it, so to speak. If I could have my own Acacia, ultimately that would be pretty ideal since I wouldn't have to worry about importing. Not sure if there were other options I should consider or if those were my best bets.