Bees are fantastically diverse, and there are some that are attracted by different flowers. Short -tongued species need plants with the nectar close to the surface, long-tongued like bumblebees and honey bees prefer deeper flowers. And flowers can provide one or two things, nectar and pollen. Both are vital for bees.
Here is a list of plants that I own that attract bees.
Partridge Pea, Chamaechrista fasciculata (cassia fasciculata) –native prairie annual, blooms for ages, interesting seedpods, nitrogen fixer. Butterfly host plant. Reseeds itself well. I use it in my meadow planting and I love it, but it only will get established in a disturbed setting. This is neat because it has 2 kinds of pollen, food pollen for bees and reproductive pollen. I recommend it highly.
Aster sp. Attracts all sorts bees in droves in the fall. I have some very nice types of these that look great in flower gardens, but I have no idea what your growing conditions are. Any aster is good, you should look and see what does good in your area.
Goldenrod, these are nice.
I cant list everything cause there are too many, so im gonna list the genus names.
Rudbeckia, sp great attractors.
Ratibida sp, plants that attract the most bees in my planting
Silphium sp
Salvia , short tubed species
Physostegia sp
Gaillardia sp also big attractors
Nepeta sp and cv- Some of the best bumblebee plants in the business!
Coreopsis sp
Almost anything in the pea family, see clovers and prairie-clovers, wild indigo, milkvetch etc.
Agastache, short tubed species.
Roses, single forms
These are hardy for me, you might have to finds species that do well in your area. Remember, MOST flowers are bee pollinated, and short tubular flowers, flat flowers, flowers with lots of pollen are often tell-tale bee plants. Cp's are bee plants! In time you will be able to tell a bee flower just by looking at it.