Zoysia Japonica or Korean Lawn Grass is a dense low-growing, slow-growing perennial with stiff leaves. Excellent drought and heat tolerance, but turns straw colored when temperatures drop below 50 degrees F. Good shade tolerance, prefers well drained soils with a pH between 6 and 7. Luxuriant appearance. Cost more to establish than other warm season grasses and may be done so anytime of year with sod or plugs.