Water Restrictions!  Water Bills!  Forgot to Water!  Irrigation System Broken!

Forget all that.  Go drought tolerant.  Here are some ideas.

Drought resistant landscape design in a cottage garden

Drought resistant landscape design in a cottage garden

Thyme has grown into a sturdy shrb.  The iris are well established.  Purple cone flower is incredibly drought tolerant as is Salvi Greggi.  This yard will withstand serious drought.  However, remember it takes three years for perennials to become established.  The good thing here is you can deep water this yard with a soaker hose which means less evaporation and more water to the plant roots.
The Chitalpa, yuccas and lilies will withstand serious drought conditions but remember the first three years need more water to become established.
Lambs ear, blooming yuccas and cone flowers are all seriously drought tolerant.
I loved this purple mimosa.  The only other one I have seen is at the Dallas Arboretum, and who knows it could flown in on the wind.  This house is just blocks away!  That’s why neighbors are not crazy about Mimosas.  They seed themselves abundantly.
Read more about native Texas plants for your garden that have withstood drought and the test of Texas hot summers here:  Native Texas Plants