Josephine, I see you have a lot of the postings in Lantana so believe you have expertise with the Lantana.
In the Database I found Lantana Camara, Radiation, Rose glow, Cherry sunrise, All of which looked something like it.
There was a Dallas Red but also I found another site which shows just Texas Lantana which Is the Urticoides variation I think
It really looks like these blossoms. The thing that appears a bit different is the pinky tinge to some of the flowers petals on the one at DBG.
Maybe there was more than one variety in that planter.
Thanks so much. I think I will recognize the Lantana from now on.
I was surprised about the size of the blossom, some as large as maybe 2inches across,
Do most Lantanas have a blossom that large?