I'm not 100% sure, but I think I remember that my Don Juan came from
Chamblees. The black velvet look seems more prevalent in fall for some
reason. Which makes me think "cooler", but then it doesn't seem to
apply in Spring. It's in a very narrow bed along the front walkway and
against a brick wall growing on a trellis. Extra heat from the wall
maybe? The wall faces south, but has some shade in the morning from the
house.