To deter bald-faced hornets [in addition to bees and wasps], I would suggest planting Feverfew (Chrysanthemum or Tanacetum parthenium) nearby. I had a seasonal challenge in late summer with wasps congregating around and under the shutters on the front of my house, but planted one Feverfew in the adjacent garden and they have since found other living quarters. I’m sorry that I no longer see green halictid bees nesting in the front lawn…but I don’t have to wait until after sunset to mow. Feverfew is so potent that you would want to keep it away from your vegetable garden to preserve pollination.