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.
Water stimulates fescue seeds to break their seed coat and produce a seedling. In general, mist the newly seeded area to keep it moist, but not soggy. Heavy water droplets from a sprinkler or hose often wash seeds away -- a light watering once a day is an effective strategy to germinate fescue within two weeks.all fescue grass (Festuca arundinacea) is a cool-season grass that grows well in U.S. Department of Agriculture plant hardiness zones 3 through 8.