N. California gardeners: Need help saving Veronica repens

N. California gardeners: Need help saving Veronica repens

First time poster here... *waves* Using the Western Gardening Book, I have a garden that's in Zone 15, but it's acting more like it's in Zone 7... I recently planted some Veronica repens in the front yard, in landscaping fabric to fight off weeds -- but it isn't doing well. Every morning the plants are watered by automatic sprinkler, but by mid-afternoon, the bed is totally dry. The area where I placed the Veronica repens gets full sun from about 11:30 am through the early evening this time of year, and lately, 90-100 F temperatures (no rain in this climate this time of year) so I'm wondering what I should do with the remaining Veronica? I doubt I can save the 6 plants I started; they look crispy even though I've been watering them by hand in the mid-afternoon. I put another 6 plants around a footpath that gets shade part of the day, and has a better water saturation level through the day... but those, too, are crispy. The remaining plants that I have in a flat on the patio are doing the best, but they, too, look quite dried out compared to when I bought them. When is the point of no return, when I have to give up on the Veronica? Is there anything I can do to save them? Also, can anyone recommend a drought tolerant blue-green ground cover or one with small blue flowers for the front yard, if I have to totally ditch the idea of Veronica repens? Thanks for all your advice!
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