How to Reduce the Acidity in Soil From Gravel


Certain types of rocks can significantly increase the acidity in the soil. When soil becomes acidic, some plants cannot thrive and grow. Elements like aluminum and manganese can become toxic because of their higher solubility in low pH soils. The good news is that it is relatively easy to reduce the acidity in soil from gravel. Few tools are needed and it takes just a little time. By reducing the acidity in the soil, plants can once again thrive.

Step 1

Test the soil with a pH meter in multiple locations to see exactly where the acidic areas are.

Step 2

Apply lime at a rate of 50 lbs. per 1,000 square feet. Use a broadcast spreader to distribute the lime evenly over the area.

Step 3

Mix the lime into the top 6 to 8 inches of soil with a rototiller. Lime will not become soluble in water, which is why the mixing is necessary.

Step 4

Retest the soil's pH level after a few months. If the soil is still acidic, reapply lime to further raise the pH.

Tips and Warnings

  • Adding too much lime at once can turn your acidic soil very alkaline. Waiting a few months between applications is crucial to allow the lime sufficient time to modify the pH of the soil. Wear a dust mask when applying lime. The dust can irritate the lungs.

Things You'll Need

  • PH soil meter
  • Lime
  • Broadcast spreader
  • Rototiller
  • Dust mask


  • Oklahoma Cooperative Extension Service: Cause and Effects of Soil Acidity
  • Clemson University: Soil Acidity and Liming
Keywords: reduce the acidity in soil from gravel, broadcast spreader, ph soil meter, test the soil in multiple locations

About this Author

Robin Gonyo has been writing for several years now. She has a deep love for gardening and has spent a vast amount of time researching that subject. Previously she has written for private clients before joining Demand Studios. She hopes to share her knowledge with others through her writing.