moss roses and purslane grow easy from seed and love hot and dry. Pentas could work as an annual too and they don't get thirsty
I love lantana and would not diss it to you

Purslane is great. I also highly recommend 'ice plant' which is flowering now and it's much more tolerant of cold snaps and frosts (it's perennial) than purslane (annual). If you do plant the iceplant remember it will run 18-24 inches from where it's rooted. Trimmings can be quickly rooted in plain water (as can purslane) to add to your garden plantings.
Mexican zinnias (low growing continuous flowering neat mounding plant) in creamy white,almost marigold yellow and mixtures of rose,fuschia and pink do great in zeriscape if you prep the soil under and around them with just a bit of water saver beads. Don't use too much or it will heave the soil as the beads expand into globs of water holding gel.

Look up plants recommended for zeriscaping for zone 7-8.
After the droughts we've had down here you'll find a lot more selection of plants with lower water needs at your local garden centers.

Thanks for the ideas! Sounds like purslane is the winner!

pt

Tina James Magic Evening Primrose.
Please Note: Readily self seeds. Long bloom cycle. Looks weedy when growing and after blooming. Gold Finches and Bublebees love it.

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Also Ice Plant, Russian Sage, Agastache. Blue spruce sedum

Primrose, my favorite plant. The one I had to dig down a foot of soil and heave the soil and the mat of roots out because it laughed at Round-Up. Nothing would or could grow through that mat of roots. oenothera..not

Russian sage
lavender
agastache
gaillardia
salvia greggii

ha..if you want drought resistant you should try bleeding heart.
I guess I accidently dug it out last fall when weeding a bed, tossed it and the weeds on the top of the brush pile(like 4' above ground and all branches and sticks)
Darned if the thing didn't grow and it bloomed late this year, on the day my husband passed away. Never noticed it until I saw all the white flowers.
I thought it was prophetic to see a fully flowering spring plant blooming lushly with no soil.

Dottie,
So very sorry to hear about your husband. I agree, the flowers blooming sounds prophetic to me also!

Thanks Dee, I didn't mean to hijack ptpix's thread but talk about 'drought resistant', LOL.

Actually, gyozu's evening primrose is great and less of a thug than the pink, lower growing form I threatened with nuclear warfare.

Many herbs prefer to be in dry,well drained locations and of course the varieties of lavender work well too.

Dottie: My mother grows ice plant in south Texas (hot any dry) and she says that during the worst of summer she has a problem with the birds eating it for the water content. I had never heard of that but when I visited last July, sure enough, the birds were eating her ice plant. Has that ever happened to yours?