Though Texas is behind several inches in rain this year, compounding a deficit from last year, there still are flowers and plants to be found blooming. This will be the beginning of my "Hardier than Heck" list for Central Texas.
Morning Glory, native and non-native
Pride of Barbados
American Beauty Berry
Antique Roses and Knock-Out Roses
These are blooming in managed landscapes and ultra-low maintenance landscapes!!!! And I mean we are low on water! Last year the area was short nearly 50% and this year looks to be the same so far.
And here is a list of what's just plain living despite the high temperatures and low humidity (relatively-for us).
Agaves, agaves, agaves
Little blue stem
Inland Sea Oats (Wood Oats)
Fig Trees-if well established
Hackberry-can't be avoided
Trailing Rosemary seems to be better than upright
Here's what is not living in this climate
Turf grass of any kind! Stop spending good money on treated water for St. Augustine, Bermuda, and really even Zyosia. Try Buffalo Grass for sunny areas. Create more gardens, surround them with borders to hold water when it does rain. Let anything go that you are finding yourself watering everyday!
Dwarf and thin Liriope
Cast Iron plant-get it out of the sun