Angelonia angustifolia

Wow! Such incredible flower. I want one!

It could do very well there as they are rather tolerant of drought.

I just read they're commonly grown here. :>))

Should make a good sized bush out there.

Yes, almost everything grows much bigger than described in books here. LOL!

For example: Gynura aurantiaca (purple velvet plant) is described as only growing to 1 ft (30 cm) tall, my plant is more than 3' (1 m) tall.