I have been admiring this around town, and of course I want one for my yard. Does anyone know what it is?? I don't want to seem like a complete idiot when I go to the nursery and start my pathetic description..."well, it's sort of bushy, and has lavender-coloured spears of flowers. It's pretty delicate looking, um, no, it's not that... it's like a salvia, I think, um, no not that plant either...." I can see it now, and it's not good. SO, can ya'll help me out with this. Please.