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.
Fescue overseeding in shade areas each year will keep your fescue thick and healthy. All fescue areas should be overseeded each fall, because in Tulsa we're in a transition zone that is really too hot for fescue. Fescue will grow in full sun in climates farther north, but here we plant it in the shade. Each summer, our 100Â° plus weather will kill out a lot of our fescue. Fescue also needs sunlight. When we seed it in the fall, the leaves are falling off the trees and the temperatures are cool.