There are various flowers people recommend because bees like them and I have tried to have a guarden design to feed the bees based on this. What I have found is

There are various flowers people recommend because bees like them and I have tried to have a guarden design to feed the bees based on this. What I have found is those that smell more due to either their quantity or are stronger scented seem to attract more bees and be more popular. Two big lavender bushes for example seem to be very well visited and I can smell them from a greater distance than anything else. So I suspect this likely is part of the problem, it impacts our smell capacity too as pollution quickly overrides the ability to smell the flowers.