flowers bees like

I was soooo concerned about planting flowers that bees liked this spring. I only got a few reported favorites and figured I could add more next year. I might as well not bother. The bees like the microscopic flowers on trees that I never knew had flowers. They like the tiny blossoms on my Virginia creeper. They like the blossoms on the weeds. They are not interested in my poppies. They are not interested in my columbine. They are not interested in my irises, my lilies, my lupine, my lavender, or anything else that I purposely planted for them. They DO however love the lambs ear that plagues my yard. This invasive flower has taken over every flower bed along with certain parts of my lawn. My bees are ALL OVER IT. They love it and it blossoms forever. Who knew?