Get a Little More Than You Think You Need
"I think I needed more than what was recommended for the area I was seeding, but I tossed it on bare ground in early July (during a heatwave) just to see what would come up, and it only took a week or two with intermittent morning watering to start seeing results. It's definitely concentrated where I over-seeded, but I'm confident enough to get more to do a more proper over-winter planting. I live on a very heavily-packed clay hill, but I did spread out a thin layer of garden compost some time before seeding."