Festulolium is a cross between a fescue and a ryegrass. There are thousands of ways to cross, but these are the best available in the world.
Festulolium fertilizer requirement are intermediate between ryegrass and tall fescue.
Seed size is identical in size and weight with tall fescue and they mix well together without separating. Seeding rate as a nurse crop with tall fescue and alfalfa is between 2 to 3 lbs per acre. For pastures in the upper Midwest, we use 5 lbs per acre. For a pure stand the seeding rate is the same as tall fescue. This is not commonly done as stand life is approximately 3 years with the fist year being the most productive and declining from there on. However this characteristic with its fast establishment makes it an excellent nurse crop for alfalfa and tall fescue.