For small areas, intense care may be all that is required to restore diminished grasses. Mow at a height of at least 5 centimetres, (2") increase fertilizer applications to 5 or 6 starting in early April and ending in mid-September, and increase watering frequency. Control of weeds, disease, and insects is essential. These practices stimulate rapid growth which will encourage existing grasses to fill thin areas.

In areas where thin but desirable grasses remain, over seeding is an option. Expect a high failure rate unless the seed is in firm contact with the soil and the area is kept moist enough to prevent drought until the new seedlings are well established (6 to 8 weeks after planting). Spread seed on the soil surface at double the recommended seeding rate, then cover with topsoil, and roll firmly. Alternatively, the seed may be placed into the ground by a mechanical over seeder. Growth from seed to a thick lawn will take in excess of one year.

In areas where inadequate or no grass remains, sod can be used for immediate repair. Prepare the site as discussed earlier but remember to allow for the thickness of the sod. Even with minimal care, sodding has the highest success rate.

First Tip: Feeding Your Lawn