Do you have a low growing ground cover perhaps that produces a SMALL flower and requires little water that I can use in full sun in Tierrasanta?

Yes I'm just going to piggyback on the other responses, they have wonderful options for ground covers with a variety of different color flowers. I also agree that you need to go and check them out in person. The owner has done some wonderful displays with a variety of textures and colors. Lots of great ideas.

I'm sure they have just what you're looking for

Hey Lyn! YES they have lots of options... Check out their website for a list of options and then you gotta check them out in person. Hope this helps