I did have some rot problems with Xanthoheuff last spring, during our monsoon weather time. But his year it didn't do the rot thing. I went to get a photo just now and both of my batteries are dead.
Charging them now. Will try to get a photo tomorrow. In April is when it gets the really yellow color here. And it gets very yellow.
April 2011
And here it is in June 2011
It is one of my very favorite heuffelii. So far it has greater bright yellow coloring than h. Gold Bug.