I thought you all might be interested in this site.
It is a site where you can go to check on all the nurseries in a state, city, or community. I used it for a recent trip across Texas- and I got to see nurseries that I would not have known existed otherwise.
Open the site.
click on your state.
click on your city or town.
Nursery/landscapers are listed first, then all the plant nurseries in the area, along with maps showing the locations of the nurseries. It has been remarkably accurate for me.