Q.Zoysia Grass and fertilizing
What is the best time to fertilize and should I put some lime over the zoysia lawn with a broadcast spreader? I live near Raleigh, NC.
Also, when is it necessary to dethatch? I’ve read about the liquid de-thatcher. What do you recommend?

Certified GKH Gardening Expert
This article will help with fertilizing zoysia:
https://extension.missouri.edu/publications/DisplayPub.aspx?P=G6706#Maintaining
As for dealing with thatch, regular mowing helps to prevent thatch from accumulating throughout the lawn. It also helps to limit the amount of fertilizer used on zoysia grass. This article may help as well: https://www.gardeningknowhow.com/lawn-care/lgen/lawn-thatch-control.htm