yes that is a texas star hibiscus.Hibiscus CoccineusI'm glad yours is blooming.I've re started mine from seed
.It seems to be growing
slow this year& the one wintered over from last year is not above 2 ft.When hurricane rita came through mine was 6 ft& it was flat afterwards mostly into the pond(it grew to one side of water feature)Now my october rose
is another.you'd love it.it blooms in Late oct-nov lovely burgandy rose
and when the temps get cool the edges of leaves will take on a purple cast.I got seeds
too.It gets huge.10 ft tall and at LEAST 6 ft wide.mines just 6 ft right now.
here's a shot
Thats the flower
on october rose
This is one grown with goldenrod
and this the monster in flowerbed
By the way.Mulch yours well and the'll return from roots for you.Theres a tire place in Garland that grows these in front of bussiness on corner.They mulch theres and they return its still zone
6,but you get worse weather.That looks like a good spot its in.least will cut off some wind.If you peg pieces of your blackie sweet potato
vine down it will grow starts from there and you can fill the area as ground cover faster.