Mystery solved. I took the two salvia stems, blooms and leaves, to Barton Springs Nursery this morning and got confirmation that they were both HD. One is growing in full sun and the other in semi-shade of an oak tree. The one in full sun "I knew" was HD. But when I looked at the other one next to it to compare, I wasn't truly sure anymore. And the tags have long since disappeared. The Augusta Duelberg is smaller and has smaller blooms, even tho it's also in full sun.
