Texas Gardening Regions. Also, for list of plants appropriate for south central texas: http://aggie-horticulture.tamu.edu/archives/parsons/publications/southcnt.html
Plumbago – so pretty cheerful – thrives in the hot Texas summer. Disease- pest- and deer-resistant. Can grow into a large bush, and also can be trained to grow on a trellis.
Some native Texas plants. Heat and drought tolerant, which means low maintenance!
texas xeriscaping ideas | An exuberant border that attracts songbirds and butterflies galore ...
Five Drought-Proof Plants for Texas Gardens Source: http://www.texasgardener.com/pastissues/marapr06/drought.html
These plants are superstars in Texas gardens and landscapes. Texas horticultural experts recommend them for their ability to perform well in south central climates.
Mystic Spires Blue Salvia-Grows beautifully in my sun garden in Northeast Louisiana. Up to 4-feet tall, blooms May-October.
Gardening in Texas: Top Hardy and Drought-Tolerant Plant Recommendations for Texas Landscapes
When to Plant Vegetables in Texas
Texas Planting - She will tell you what to plant and where! Lists of plants that are thrillers, fillers, and spillers. Great site!