Today in his Dallas Forth Worth radio program Neil Sperry and a guest were talking about a resilient fall color plant for the area called ??? oblongifolia... Could not get the first part. A search on the net shows there are many of them(oblongifolias) as you would expect. From the comments it has blue or close to blue flower and does better when kept compact.
I know I am not giving many clues.. but can anybody figure out what plant he could have been referring to?