According to NC State University[1]https://chatham.ces.ncsu.edu/2014/09/time-to-seed-tall-fescue/, a typical tall fescue seeding rate is 5 to 6 pounds of seed per 1000 square feet. Germination normally occurs within 7 to 21 days under suitable moisture and soil temperatures conditions.
According to SFGate[2]https://homeguides.sfgate.com/long-fescue-germinate-72644.html, Tall fescue grass (Festuca arundinacea) is a cool-season grass that grows well in U.S. Department of Agriculture plant hardiness zones 3 through 8. This particular grass species germinates between 7 and 12 days after seeding. However, you must create a nutrient-rich environment and couple it with specific temperatures for successful seedling growth.
According to hunker.com[3]https://www.hunker.com/12000304/how-long-does-it-take-for-fescue-seed-to-germinate, fescue grass seeds germinate best when the soil temperature is 50 to 65 degrees Fahrenheit. The daytime air temperature should be between 60 to 75 degrees Fahrenheit. Fall planting is the ideal time to plant fescue, but spring planting can also be successful. Fescue seeds takes approximately 14 to 21 days to germinate.