Thank you very much, Lori and Tim! Yes, this is in my garden. It is supposed to only get between 3 and 4 feet tall and I have two 'Acropolis' plants. The other one gets taller, but I think this one gets more blooms because it gets more sun.
Taken same day as the entry photo.
And here is the other plant that gets a bit more shade and gets taller, but not as many blooms.