I asked Eileen Kahl, bromeliad curator at the University of South Florida Botanical Garden, what this was, and she talked about it like it was an old friend. It's Aechmea gamosepala. The pinkish thing is the inflorescence, and the tiny blue things are the flowers. It's cold tolerant down to about 26 degrees. It likes light to medium shade. And it multiplies like mad, that rascal.