Do bees like all flowers?

I’m getting a bee problem on my porch. I can’t seem to find any nests near by but these bees don’t seem interested in my flowers. I’m not sure if they are bees or maybe a hornet or something similar. I did find one place of interest and that was a empty pot that had a ton of flower under it. I washed it out with bleach and let the bleach sit there. They only hover around it now and fly off. But if they were bees why did they show no interest in the flowers near by?