Gardeners wanting to fill in bare spots throughout their lawn can use grass plugs. Grass plugs are also suitable for filling an entire area with grass, but they can take up to six months to fill in and be lush. Plugs are miniature versions of sod pieces and are quite a bit cheaper. For those wanting a quick fix to a bare area in the lawn, planting the plugs close together will solve the problem. The closer the planting, the quicker a lush lawn will grow.
Prepare the area for the grass plugs by removing any sticks, leaves, weeds or other debris. Plugs require good soil contact. Weeds can compete with the newly planted plugs and keep them from growing properly.
Water the soil before installing grass plugs. This will keep the root system moist and will help the plugs remain in place.
Dig out a hole large enough to cover the roots. Use a staggered or checkerboard pattern when digging the holes and installing the plugs.
Place a small amount of starter or plug fertilizer into the hole, per the package instructions. This fertilizer is a special blend to give plugs the required nutrients to grow (without burning their roots).
Place a plug into the hole and pack the soil firmly around it. Make sure the plug roots are covered and the grass blades are sticking out uncovered with soil.
Plant the remainder of the grass plugs at an appropriate distance. For a tray of 18 plugs, spacing 12 inches apart covers 32 square feet, spacing 15 inches apart covers 40 square feet and spacing 18 inches apart covers 56 square feet.
Water the plugs immediately after planting, being sure to saturate the roots. Continue watering the plugs everyday for approximately four to six weeks, allowing them to establish themselves into the planting site. The plugs should continue growing and spreading throughout the area.