There are a number of reasons why a lawn succeeds or not. In dry climates, the most crucial factor is irrigation.
There are many factors contributing to the success or otherwise of a lawn. A main cause leading to failure is a compacted soil, which lacks oxygen in the root zone, and does not allow for the adequate infiltration of water. Other vital factors include a correct mowing regime, a suitable feeding programme, and periodic de-thatching. Adequate moisture though is the single most important question as to whether a grass will succeed or not.