It is definitely Texas Sage. I have one in a nursery pot and one in the ground (10 plus years). They are really hard to maintain in a compact form. I thought I could figure them out but I was wrong. They do back bud pretty well when pruned though. Good luck!
Im working on a sage as well its a golden sage. It looks is a kind of like a large jungle tree but. i'm thinking more of a literati in the future. How is yours coming along, any updates? I wish goodluck!