Yeah, thanks! The broccoli flowers with a few leaves and the soft stems taste a bit like broccoli actually, different texture of course.
Yeah for the corn, what you read makes sense. We were just thinking maybe there's only female plants there and so they can't pollinate properly, or something along those lines... Should have read up on it too!
I think the leafy greens are lambs quarter (wild spinach that came with the horse manure we picked up)