In order to attract the pollinators, you must plant clumps of 3 to 5 of each species.

This will create a larger visual and fragrant display.  Be sure to include species that will bloom spring, summer and fall so that nectar is available all season long.  Consider adding a water feature. It can be a simple as a shallow dish with marbles, stones, or sand.

Pollinators also appreciate a shallow muddy or sandy basin.  Avoid any pesticides in this garden.  Do not clean and cut down this garden in the fall, wait till early spring.  Many pollinators overwinter in hollow stems and leaf litter.