I got the seed for this plant from a member in Austin after seeing it and commenting on how beautiful it is.
The seed is heart shaped as well as the leaf. After soaking the seed overnight I planted it in a small pot and many of the seeds germinated, but I was only able to get two of the plants to survive.
Since it is cold tender in my zone I have kept them in pots, but they never grew very large, even after 5 years because of the pot limitations.
This plant is a good prolific bloomer and the red of the flowers seems to glow, I like it very much.
I think that this plant will do much better in a warmer zone.