@caddick interesting question Mike... it seems that bees and butterflies like different colors of flowers... I had to do some research to find out... but bees really like white, yellow & blue UV colors and butterflies like red and purple flowers. I read that bees see red as black but what they are also looking for is pollen and nectar. https://blogs.oregonstate.edu/gardenecologylab/2020/03/14/how-do-we-know-what-flowers-bees-like/
https://blogs.oregonstate.edu/gardenecologylab/2020/03/14/how-do-we-know-what-flowers-bees-like/