Source: The Castaic, CA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.
Plant fescues when fall temperature reach about 75 F. The next best time to plant fescue seeds is when rising temperatures in spring reach 60 F. Summer isn't a good time to plant fescue lawns, because fescue grass tends to go dormant during periods of high temperature.
Mowing Tall Fescue For Lawns. In areas of it's adaptation, Tall fescue grass for lawns should be mown at a height of 3 to 3.5 leaving the grass clippings on the lawn. Mowing at this height will give the lawn an even textured finish. For athletic fields, mow to a height of 2 to 3 inches.