Welcome to the Soil Testing Laboratory

  • How does your garden grow? Get a soil test and make the most out of your growing season
  • Current Turnaround time on tests is 7 - 10 days

STRAL in the News

The Farmer

Minnesota Farm Guide

UMN Extension: Minnesota Crops News Blog


The University of Minnesota Soil Testing Laboratory is part of the Department of Soil, Water, and Climate. We provide high quality testing services to the public, Universities, private companies, as well as State and Federal Agencies. 

Soil Testing Procedures Graphic


Florist Testing Down on Week of July 4th

Because the 4th of July falls on a Wednesday, we will suspend Florist Testing Services the week of July 2nd.  We apologize for any inconvenience, but we will be unable to test any submissions that week.

If you need media tested, please plan to submit it before noon on Wednesday, June 27.  We will hold all samples that arrive after that cut-off until testing resumes on Wednesday July 11th.

We're back in Crops Research!

The current address is:

Room 135 - Crops Research Building

1902 Dudley Ave.

St. Paul, Minnesota 55108

Parking: You may park along the curb near our Dudley Ave. entrance for up to 20 minutes. Metered parking is also available along Gortner Ave.

Out-of-State Samples:  Please consult this map. We can accept soils from mainland US counties (including AK) that are NOT highlighted or marked on the map.

For more complex, research appropriate analysis and testing services, please visit the Research Analytical Laboratory website. 

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