Is this a poppy to be?

Is this a poppy to be?

Observation - Is this a poppy to be? - UK and Ireland. Description: I did find some purple/pink headed poppies in the garden a year or so ago. this one just to confuse me is growing where I once had cabbages. I've found loads in my front garden. some really tiny, and a few in a line! thanks if you can help.

I did find some purple/pink headed poppies in the garden a year or so ago. this one just to confuse me is growing where I once had cabbages. I've found loads in my front garden. some really tiny, and a few in a line! thanks if you can help.