Bees like yellow, but they also love purple.
Bees are facing many stressors because of climate change, loss of habitat, too many chemicals and disease.
On World Bee Day plant some seeds bees love like bee balm(menardia) Culver’s Root, hyssop, Joe Pye weed, or asters. Also, consider a bee lawn https://beelab.umn.edu/bee-lawn
https://www.earth.com/news/world-bee-day-highlights-urgent-need-to-protect-pollinators/
Health4earth 