You must have a sunny spot in NN to have healthy Zoysia.
In Yorktown, where we have shade trees, fescue does better.
(Crab grass does best;)
My entire yard is pretty much partial sun. We have several large oak trees and some pines so everything is in the shade for a good part of the day. The zoysia is doing fine, even in the shadier spots... the Empire anyway. As I said the Zenith Zoysia that I seeded hasn’t done nearly as well. In fact, I will probably till those areas next year and throw in some Zenith plugs. McDonald’s Garden Center on LaSalle/Settlers Landing in Hampton sells them.
You think crabgrass does good, I need to throw you some nifty bahia seeds! Grows great, covers fast and you will enjoy changing mower blades more often.