I have a bougainvillea that blooms hot pink and salmon on the same branch - and I've seen blooms change colors as they age - but I have never seen anything like this before. My mother-in-law cut this canna last week. You can see that some petals are coral and some are yellow and, still yet, some are yellow with coral spots. But the petal that caught our attention is the one that is 1/2 coral and 1/2 yellow (okay - it's really 2/3s coral and a 1/3 yellow). In the close-up below, you can see a distinct line that separates the two colors. This particular plant has been in her yard for many years and we have never noticed it doing this before. I just love this crazy coloration - it's like the canna can't decide what it wants to be! Any thoughts?