Yes the Mauna Loa is pretty but....................
I see the Rufffles and Truffles are similar and Lynn has them in her database...Maybe she can give us some feedback on the coloration.
I found the plant zone in San Marcos website, I think. They also said it grows 2-3 feet high and 2 feet wide.
WOW!!! Big and beautiful. It may be way too much plant for me