Treatment for Low Soil pH – Acidic Soils
If your soil pH test results fall below the 6.5 ph level, your soil may be too acidic for your lawn to grow. However, adding lime is a common solution for lowering the acidity of your soil. Lime is a natural calcium based mineral that will raise the alkalinity of your lawn. Apply lime to your yard in the fall. This gives the soil time to absorb the mineral before the heavy growing season in the spring and summer.
The amount of lime that is needed to change the pH of your soil will vary. Specifically, the more you need to increase the pH, the more lime you will need. Therefore, refer to your pH test and manufacturer’s instructions for application rates.
If you wish to raise the pH of your soil, it will take time as it is not an overnight process. Frequently test after application to ensure that too much lime is not added. Also, frequently testing will indicate if additional treatment is needed. After your yard’s pH is where it needs to be, further lime application should only be required every few years.
Recommended Lime Treatments
Treatment for High Soil pH – Basic Soils
If your soil pH test results are above the 7.5 ph level, your soil may be too basic for your lawn to grow. Sulfur is commonly used to reduce the pH of the soil and should be applied in the spring or fall. This gives the soil time to absorb the mineral. Much like lime, lowering the pH of the soil will take time. Once the desired pH is reached, treatment will need to take place only on an as-needed basis.