Crop coefficient tables?

We are replacing sections of our turf lawn with native plants. Does anyone know where I can find crop coefficients for mid Atlantic native plants such as coneflowers (Echinacea purpurea) or bee balm (Monarda didyma, M. fistulosa)? Or do I just pick something to start and then refine based on how the plants do?

Thanks.

Don’t mean to sound like a troll but I just have to ask why you are wanting to water natives?? Might make sense in first season to help get the plants settled but where I live (less than 10” rainfall and virtually zero during summer) people that water and fertilize their native gardens have endless trouble and litter the online forums with tales of woe and expense. Good luck.