It does not appear to be a lacecap.....I see no fertile florets present. And the color looks to be white. But I am not sure I can come any closer to a specific cultivar. In your zone, unless you provided winter protection, I would think that only new wood bloomers would flower reliably and it sees pretty early for that to occur.

Have patience. A lacecap bloom that is starting to unfurl may look sort of like this: http://2.bp.blogspot.com/-qVl793wNbc0/VXrrVptWX8I/AAAAAAAAzlo/Otqh_aMqK5Q/w1200-h630-p-k-no-nu/lacecap.jpg