- Zoysia grasses are an excellent choice for those who want to upgrade their existing lawn or have enviromentally challenging areas they want to look nice. All zoysia grasses are warm season grasses that go dormant in the fall depending on the variety as to how long they will remain green. Some will take a heap of drought, some a heap of shade and some are good in sun or both sun and shade combined. Take a look at the what we think are the best choices for our Georgia climate and conditions.