I seeded a yard 2 monthes ago with rebel III Fescue. This was a new yard install. Well I went to look at it, and about 70% of the ground has grass....30% does not. The areas that do, have really nice looking grass. It tends to be in blotches. Is this normal the first time seeding. What percentage should come up? Is there a reason why not all of it is coming up? I seem to be getting a lot worse results with this seed than I did planting it in the fall. I planted the same grass in my yard ( overseeding) a month and a half ago, and it is just now really starting to come up.