A test was devised to compare aeration hole depth and seed germination. Depths of 1, 2, and 3 inches deep were compared. Four types of seed were sown: bluegrass, perennial rye, tall fescue, and fine fescue. The test was conducted indoors at about 65 degrees. Purchased, screened, loam topsoil was packed in a deep flower pot. A 3/4" soil probe was used to make the "core" holes. Unfortunately after seeding and watering, the holes tended to fall inward when watered in the next day or two. The holes were almost invisible after two days. At 8 days, rye was the first to emerge and tallest, a maximum of 3 inches tall from the one-inch deep core, 1.87" tall from the 2-inch depth, and 1.25 at the 3" depth. Tall fescue was second at 1.5, .37 and .37" tall. Fine fescue was third at .75, .75, and .75" tall. Fourth was Kentucky bluegrass. Surface applied was at .5". One-inch deep emerged to about .25" tall. Only a few shoots emerged. There were no signs of emergence in the 2-inch or 3-inch deep bluegrass cores.