Primrose is blooming and is this right?

I had thought these plants were spring bloomers only. One of mine is going again. Did I do something wrong?

 

You did nothing wrong. I often find plants don't conform to the times we want them to flower. This year I had Hellebores flowering in July and Bergenia flowering in August. I don't know why they did it, they never said

 

They often do that over here.
I've got some polyanthus flowering at the moment in a similar way.

Once the cold sets in they stop and settle down.

 

Thank you for your responses. I am glad that it is mother nature playing with me and not reacting to me!