Wow, what a bee photo!
This year I'm paying attention to what the bees like. They don't seem to go after my clematis much, even though it is full of brand new flowers. The daylilies are only attracting a few.
The centaurea is absolutely full of bees of all sorts:
The penstemons are a big hit with the bees, both honey bee and native bee. I saw many many sweat bees in the penstemon, as well as bumble bees and some small carpenter bees.
The poppies are just full of bees.
Sedum flowers atrract lots of the smaller bees right now. Later the tall sedums will attract all sorts of bees.