I'm really liking the burkwodii and I don't knopw how similar it is, but there's one up here that has mixed in with the straight yellow, has the red / orange coloring to it. Word is that everyone spends so much time eradicating the broom, that if I see one of the ones I like, feel free to dig it up...lol..they spend a lot of time and energy and money up here trying to clear it out, I suppose my neighbors would not be happy to see me plant it, even though it's all around us anyway.
