Rosemary really attracts bees.
I just thought of something too Deb. Stalked bulbine. Bees go ga-ga over it. Check it out & see if it will grow in your area.
Stalked Bulbine (Bulbine frutescens)

Interesting, Jay! I would've thought I would have known that term, but I guess not! Right now, there's more bees on Frostweed and Goldeneye here.

I just posted some photos of my mason bee houses in this forum. I live in Florida so, of course, have some different flowers. Right now my bulbine is blooming again and you're right Ann, the bees are all over it; -also the cuban buttercup. The pentas, plumbago and bleeding heart are also still in bloom.