They don’t want most of the crap people plant trying to be Eco friendly anyways or so the landscape architect told me.

Keystone Plants by Ecoregion

The research of entomologist, Dr. Doug Tallamy, and his team at the University of Delaware have identified 14% of native plants (the keystones) support 90% of butterfly and moth lepidoptera species. The research of horticulturist Jarrod Fowler has shown that 15% to 60% of North American native bee species are pollen specialists who only eat pollen from 40% of native plants.