For top quality grass, soil pH should be kept near 6.5. When your lawn’s pH is not in range, it loses the effective use of nutrients in the soil. Weed Man Loudoun and Fairfax Counties, VA's trained technicians can measure your soil’s pH and restore proper balance through the careful addition of lime to raise the soil pH or the addition of sulfur products to lower the soil pH. Once this balance has been achieved, your lawn is ready to fully take advantage of nutrients and inputs and grow into a thick, lush, green lawn. Refer to the Soil pH Fact Sheet for more information.