How should I spread grass seed (broadcast)? How much per sq foot?

A fertilizer lawn spreader is the easiest and most efficient to broadcast grass seed. Throwing by hand is not accurate for larger areas. Set the spreader to a very light setting as grass seed will flow faster than fertilizer. Go over the area multiple times in order to ensure proper coverage.

Generally, for overseeding you want to be at 3-5lbs/1,000sf and new seeding at 5-7lbs/1,000sf. 1,000sf is similar to the size of a four way stop intersection (32’x32’).