I got three of these plants several years ago for a dollar. I love them but have not been able to itdentify them. Please help.

It has a large red flower. It is flowering now. Comes back every year. The leaves look simular to pot plant leaves. The plant loves the fun and this year is 6 feet tall. I tried to add a picture to this but it's not working out. If you can help please let me know.
thanks