Yes, Love in a Mist is Nigella. I always think about Nigella Lawson (the chef) when I look at these flowers, and I find it so interesting that her parents gave her that name. It self sows PROLIFICALLY, at least this variety. It's all over the place now. And that's okay with me. It doesn't make a statement from a distance at all (you can see it in my greenhouse photo on my thread 'new potting shed project'), but up close it is quite wonderful.
Another view of the Nigella with yarrow. (this patch of Nigella self sowed from the opposite side of the greenhouse somehow…..) Both have taken over this bed along with the poppies.
