Grass thinning happen due to inadequate conditions such as too dry or too cold, no sun or too much sun, too much watering, etc. When individual grass plants die, the grass thinning occur. Golf courses in Las Vegas experience grass thinning yearly and areas of the golf course must be re-seeded periodically. The re-seeding is normally done early spring or in the fall. Seeding during very hot or very cold temperatures slows down or eliminates the germination process needed for a seed to grow into a plant and the seed may completely die. The amount of water transmitted to the seed is also important for a successful growth of the new plant. There are multiple grass types available and each has different needs regarding resistance to temperatures, sun exposure, watering, soil consistency. Make sure you follow the instructions provided when you purchase the seeds and call us if you need additional help.