pH in the Lawn—What Is It, Anyway?
The pH level has a significant impact on the quality and health of your lawn. If you’re looking into this topic, you’re already taking much better care of your lawn than many others. Here, you’ll learn what the pH level means, why it’s so important, and how you can test it yourself.
What is the pH value?
The pH value indicates the acidity of the soil.
It is measured on a scale from 0 to 14:
pH 7 = neutral
less than 7 = sour
greater than 7 = alkaline
Important to know: The pH scale is logarithmic.
This means:
A decrease of one level = 10 times higher acidity
Two levels = 100 times higher acidity
Even small changes can have a major impact on the soil.
Why is the pH level so important for the lawn?
The pH level determines how readily nutrients are available in the soil.
If it falls outside the optimal range, the grass roots cannot properly absorb important nutrients—even if the lawn is fertilized regularly.
Possible consequences of an incorrect pH level:
sluggish growth
yellowish discoloration
increased susceptibility to illness
Moss and Weed Problems
The ideal pH level for a lawn is approximately 6.5 to 7. Within this range, lawn grasses thrive and grow strong and healthy.
How can I measure the pH level of my lawn?
There are several simple and reliable ways to do this:
🧪 Soil test kits or test strips
readily available
easy to use
Mix the soil sample with water
Read the pH value using the color scale
📟 Digital pH Meters
Fast and accurate results
Insert the probe into moist soil
Read the value directly
🔬 Soil Analysis
a particularly precise method
provides an exact pH value
plus personalized recommendations for soil improvement