This plant has confirmed its place in my garden.
Not a climber but a rambler, requiring a support. It is best grown mixed with other vines, it finds a space protruding through them to sun growing up to 20 feet. Here it is poking through Wisteria, Quisqualis and Golden Shower.
I have yellow single, yellow double and red, I am trying to get other colours too. I have successfully propagated it through tip cuttings. It is susceptible to frost damage and requires protection first year or two.
The flower
With Quisqualis 20 feet from root
Through Wisteria
Through Golden Shower
Highly recommended
Arif