Bama, there’s millions of purple flowered soy beans grown here in Michigan. Since there isn’t a weed to be seen in the fields, I would assume the purple ones the farmers plant here are GM soybeans (Roundup ready soybeans). I rarely see any bees on them here though. I’ve been told there are numerous cultivars of soy beans and that bees love some and hate others. The soybeans grown down your way are probably different than the ones grown way up here, but I really don’t know.