You read my mind.
Looking for one here now.

I did just find other information that negates most of what I said about hot and humid! LOL Still looking.

They apparently will flower in Australia as far south as Melbourne, which is way south of me, but it says they do better after a dry winter (they get more rain in their winter there usually).

http://www.hellohello.com.au/Jacaranda.html

I hope this thread is OK here. It's sort of "developed".
I should have called it ? about the TOW (Trees of the World) lol