Arlington County. The skylines of Arlington's Courthouse and Rosslyn neighborhoods, with the Georgetown and Downtown neighborhoods of Washington, D.C. immediately past them. The county accounts for most of Virginia's border with the District.
Watering and mowing alone will not make a healthy lawn. It must be fertilized. We have included a starter fertilizer in the mixture applied, but it is only sufficient to supply enough nutrients for about 30 to 45 days. It is important for the development of a healthy lawn that a fertilization program be started at this time.
Picking Out Fertilizer. 1  1. Know your grass. The type of grass you have will determine what type of fertilizer you need to use, and how often you need to fertilize. 2  2. Do a pH soil test. This measures the alkalinity or acidity of the soil, and helps to determine what pH your fertilizer should have. 3  3. Measure your lawn.