Pink Poppy Proliferation Problems

I adore my double pink poppies. I can't imagine the garden without them. I always save seed just in case they don't come up on their own. In point of fact the disappearance of my beloved poppies is not the problem. This bed grew onions last year and is supposed to be planted with vegetables this year. That means in this bed my beautiful poppies are (Dare I say it?) WEEDS! Too much of a good thing is still too much. It's not easy to pull these plants. Difficult decisions have to be made where I want the poppies to grow. They have to be thinned. Choosing which plants get to live and which ones meet early compost is sometimes painful. Odds favor that this bed will be planted with good neighbors for some of the poppies. Parsley sounds like such a plant.