Weeds?

These geraniums seem to self seed all over the place, I usually just leave them as its so nice to have the added colour in the garden. These ones though will have to go as they have inhabited a pot with one of the Acers, which seems to have lost its leaves before the vibrant Autumn display of colour. I think these little flowers may be the problem, taking all the nutrition from the soil or the roots taking over or something!Not sure, but maybe i'll find a more suitable corner for them somewhere else in the garden :o)