They like sun in spring but need a bright shade in the Texas heat when summer arrivews. If the shade is too bright they may not be able to bloom well. I think your cutting them back with a little feeding to give them a boost (use a soluble product such as Miracle Gro or similar fertilizer) will help prepare them for some new growth and hopefully some fall blooms.
Thanks for the question. Please stop in again soon!
Q&A Library Searching Tips