Grass plugs are used as a way to fill in bare areas of the yard, or help grow an new type of grass that will eventually take over the lawn. Home owners can grow grass plugs in their own yards, which gives the grass the opportunity to adjust to the climate, giving the new growth a better chance to thrive.
Sprinkle an inch or so of soil in the bottom of a potting flat that is divided into cells.
Drop seeds into each cell. Make sure to drop enough in each block so that the seeds are evenly spread out over the dirt. About 16 seeds per inch should do it.
Cover the seeds with a quarter-inch of dirt and water the cell until it's damp. Put the flats in a sunny area, and wait until the grass is grown, keeping it watered.
Use the grass to plug the yard. Dig small holes with a spade deep and wide enough for each square cell, or plug, to fit in. Water the yard after the plugs are placed.