Zoysia grass is a warm-season grass. Clemson Cooperative Extension says it "will turn brown with the first fall frost and remain dormant during the winter," and NC State Extension says it "go[es] dormant in the winter and assume[s] a light brown appearance" simply because it is a warm-season grass. That tan-to-brown color is normal winter dormancy, not dead grass, and the lawn greens back up the following spring; neither extension program gives an exact week for that, so watch the lawn rather than a date.
If your zoysia just turned brown this fall, here is what is happening and what the extension sources say about it.
Why zoysia turns brown
Zoysia is a warm-season grass. Clemson Cooperative Extension says it grows best in the 80 to 95°F months of spring, summer, and early fall, and that it "will turn brown with the first fall frost and remain dormant during the winter." NC State Extension agrees: zoysia "go[es] dormant in the winter and assume[s] a light brown appearance" because it is a warm-season grass. This is the plant's normal winter behavior, not a sign of disease or neglect.
When it greens back up
Neither extension source gives an exact week for spring green-up, and it varies by cultivar and region, so there is no single date to expect. Clemson's zoysia fertilizing guidance assumes the lawn does green up each spring: it tells homeowners not to fertilize "until the grass has fully greened up." Give your lawn time in spring before you worry about color.
Dormant vs. actually dead
Brown, dormant zoysia in winter is expected and not a sign of a dead lawn. If you are unsure whether a patch is dormant or dead, our general guide why sod arrives brown: dormant vs. dead walks through how to tell the difference. If you are seeing other issues on top of the seasonal color change, check zoysia grass problems for diseases and pests to rule out.
Have more questions about your zoysia lawn through the rest of the year? Our zoysia care guide covers routine mowing, watering, and fertilizing.
