Does the Texas star Hibiscus exist in Yellow? Does anyone know if you could cross pollinate a white Texas Star with a yellow tropical Hibiscus and get a yellow Texas Star?

I have never seen Hibiscus coccineus (Texas Star) in yellow. You probably would not be able to cross H. coccineus with H. rosa-sinensis (Tropical), but it could be fun to try. I've wanted to try hybridizing across different sections to see what was possible.

Debra,
Not sure if this is germane, but I grew commercially offered seeds of Hibiscus coccinea called "Chatooga Gold" a few years ago. My thinking was that perhaps the "Gold" referred to chartreuse foliage. Neither the blooms nor the foliage were gold nor in any way suggested yellow.
The only apparent difference was that the bloom color was pink.

poisondartfrog said:Debra,
Not sure if this is germane, but I grew commercially offered seeds of Hibiscus coccinea called "Chatooga Gold" a few years ago. My thinking was that perhaps the "Gold" referred to chartreuse foliage. Neither the blooms nor the foliage were gold nor in any way suggested yellow.
The only apparent difference was that the bloom color was pink.

Where did you get it? I can find no reference to it online, other than links back to NGA.

I believe it was GeoSeed. Most years they offer the species Hibiscus coccineus and "Chatooga Gold." I just checked the 2016-17 catalog and this year they offer only the "Chatooga Gold."