It's just a weed but I love it!!!

I took this pic over our field. I've no idea what the plant is but there is a big clump of it next to the footpath alongside the farmers crop of wheat. It has big oval leaves with these pinky purple pendulum flowers. The bees, flies, hoppers, butterflies and beetles seem to love it. This is a weed I wouldn't mind having in my garden. :-))))

Done