Zoysia is a warm-season grass that usually grows in warmer climates and lawns that aren't shaded. St. Augustine, Bermuda and Centipede are among the other popular warm-season grasses. Warm-season grasses are actually tropical grasses that grow well in hot summer heat. Native to Southeast Asia, China and Japan, Zoysia grass is one of the more cold-tolerant in this group and can grow well in a wider range of climates. You can identify Zoysia grass by its texture, color, blades and growth habit.
Identify Zoysia by its grass blades. The blades are narrow and fine.
Look at the grass's color and texture. Zoysia grass is usually emerald-green in color with a finer texture.
Observe the grass's growth habit to identify Zoysia. Zoysia is almost always planted by sodding or stolons instead of seeding, and the grass will form thick matted areas where there's a lot of foot traffic.
Study the grass's root system to spot Zoysia grass. The roots should be exceptionally deep, vigorous and invasively spreading.
Look for the grass to turn brown as soon as temperatures cool down for the wintertime. Zoysia grass will remain brown until the late spring, when it will turn back to green.