Hi Amanda. Sorry it took me so long to respond to this thread, I just got back from a trip to Wiley, TX.
Seems like this would be a good time to get semps settled in for your part of the country. They should do well, like Rido said, in fall, winter and spring.
I agree with Rido about the hot time of the year. Containers need to be moved into more protected areas that will keep the rain off of them in the hot season, only small amount of water during summer. I like the shade cloth as it is easy to remove when not needed, but it won't keep rain from getting the containers wet during the hot season. I would think you wouldn't need the shade cloth in the other seasons, they should enjoy full sun during the cooler seasons. That would also help them color up more.
Please keep us updated on your progress. Love you photos.
Oh, you can get 'Lynn's Rose Gold' from Perennial Obsessions. They may not be available right now. This is a newer cultivar so we are not sure how it would handle the Texas heat in summer.