Buckwheat is usually touted in the seed catalogs as a cover crop (green manure). It attracts pollinators such as bees. I grew buckwheat once years ago out of curiosity. The blossoms were white but yours seem to be pink! You can eat the seeds, but I've never tried them.

Do you have bee balm? I have two varieties, one lavender and the other bright red. The red ones grew at their usual height, but the lavender ones grew a foot taller (over four feet!) than they have in previous years, I think due to all the rain we've been having here in New Hampshire. It's been so constantly muggy this past summer, I'm surprised I don't have mold growing on myself.

JLfromNH