what could be causing this coloration
Its variegated!
OH..right you are ... I just went up to check the name ... it's Emerald Frost... thanks..I wanted to post it before there were any guesses.. it was a bit of fun..I just wanted to show it off... No buds on it yet .. but Texas Pink is starting..
Alistair, good to see your still around.
Thanks: I've been lurking :))