Soil Testing

Soil Testing and Analysis
One of the most important tools used when starting a new garden space, evaluating an existing garden or landscape, or determining lawn issues is a soil test. A soil test evaluates nutrient levels, soil pH, and organic matter in the soil. Most analyses also offer fertilizer recommendations and can help pinpoint potential reasons for poor plant growth.
Visit the UW Soil and Forage Lab for information about and instructions for sampling soil for soil testing. The linked materials are found on their website but listed here for your convenience.
The University of Wisconsin Soils Lab is located in Madison. You can reach them at (608) 262-4364 or soil-lab@mailplus.wisc.edu to request the testing kit, which includes sampling instructions, the form you need to submit and bags for mailing the samples.
The UW Soil and Forage Lab does not test for lead. For more information, read about Lead in Home Garden Soils. To test your soil for lead, visit the Wisconsin Occupational Health Laboratory website.
UW-Madison, Division of Extension, Horticulture Program serves the people of Wisconsin through our dedicated staff throughout the state. If you have a home gardening question please use our Ask a Gardening Question form.
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