Tropical Hibiscus-Rare Variety

I went to visit dear friends of many years that live in Braden Oaks in East Manatee and walked into their new screen room and saw this most gourgeous flower. I said - "is it plastic?" It was just so beautiful it looked unreal...they have several yellow, blush and white tropical hibsicus, which is a very rare variety that grows in Zone 10 and higher, and can not take the cold temperatures of east Bradenton. So they would be a greenhouse or inside variety when the temperature drops to 50 or below...but oh they love the summer and screen room eith its filtered light. I had never heard of them before, but am definitely going to do some research on this variety...as it is stunning!