Not in Georgetown, you live basically on the Caprock (lots of limestone) We have several folks in your area, but what nursery did you say advised you? By the way, your humidity is almost negligible to mine... let me see, live 25 yrs, like an alkaline soil (ph 7.0 prob or 8.0) need 6 hrs full sunlight minimum...are you in anywhere protected from winds? Such as a city neighborhood? or will this be an open area? It SOUNDS as if they told you true...
my memory of that area is a lot drier such as down closer to New Braunfels more than the Georgetown area...
@Grammachar are you near here?
@Bubbles ?