Here they like any of the milkweeds, the large Salvias from the guarantica group that I planted mainly for humminbirds, lantana, verbena, monardas, mexican sunflower, cutleaf coneflower, zinnias, sunflowers, culvers root, etc. We have a lot of them and since the yard is heavily planted, they, and other native bees have surged in numbers. And someone must have honeybees nearby as it has been the best year for them since we started 4 years ago. That's good as I hope to be trying to capture swarms next year. Unfortunately, where I had hoped to keep hives is now heavily planted as well!
I'm thinking about rooftops hives but worry about inclement weather in those exposed areas doing damage.