Black flowers are deep dark purple… well, it’s black to me. There are no such black flowers. Okay! It sure looks black to me. But then again, they don’t exist. I have to wonder how the owner came by these unusual annuals? We were on a house tour of historic New Castle. I like finding things they tell me don’t exist. And, I have never seen a magnolia tree seed pod (rock, under, me). – That’s the pod upper right.