Here is a LINK to the Lubbock Master Gardener site. Click on a category to bring up a downloadable PDF file. Here is another LINK to a page from the Ladybird Johnson Wildflower Center specifically for High Plains suitable plants. The LJWC list is going to be native plants that are not always available, but you are more likely to find these at local, independent nurseries.

Good links! Wishing you well in Lubbock. I'm commenting to bring this back up in case there are any Lubbock folks on here.

I'm in Lubbock! Do you have sun or shade? Do you have an irrigation system? How much maintenance are you willing to do in your yard per week?