Sample Analysis and Diagnostics

Find more information on this page about: Soil Sampling, Diagnostics, Site Visits, Rental Equipment, and Forage Analysis

Soil Sampling

Growing a garden, lawn, or pasture? We can help you determine what your soil needs in order to save you time and money. If you need any sampling tools, please visit our Rental page.



Insect and Plant Diagnostics

Have an insect or plant issue that you just can’t seem to identify? Bring us a sample or send us pictures and we can give you answers! You can send pictures via email to our Diagnostic Team at Please fill out the form below and attach it to your email or print it and bring it in with your sample.

Site Visit

We offer site visits that are handled by the experts on our Diagnostic Team. If you are interested in a site visit, please contact us at the email below. Our site visit process starts with a consultation by our team. We will go over your concerns and then determine if a site visit is needed.

We can often resolve inquiries without the need for a site visit, but we are happy to come out to get to the bottom of an issue! The cost of a site visit is $20, and we ask that you do not submit a payment until you have heard from a member of our team. Once you have heard from us, you can pay using the button below!


Forage Analysis

Want to know the true quality of your hay before purchasing or setting up a nutritional plan? Get an in-depth look at the nutritional content of your hay by submitting a forage analysis. A hay core sampling probe can be rented free from the office by submitting a request on the Rental page.



  • How do I submit a sample?
    • You can come by our office during normal business hours (7:30am – 4:30pm Monday through Friday) and one of our staff will be happy to take your sample and box it up for you.
  • What if it’s after normal business hours?
    • We have a metal cart and a drop box outside of our front door where you can drop off your sample. There are forms and boxes on the cart for you to use. Make sure that you fill out the forms completely and leave any payments/forms in the drop box.
  • How do I pay for my sample analysis?
    • We offer online payment for all samples. You can find the payment link below.
    • We also accept exact cash and checks.
    • You can make your checks payable to: Williamson County Extension
  • Can I test my potting mix/compost?
    • Yes, you can have your potting mix tested, but it is an additional cost.
    • The cost per sample is $35 and you can find the form here.
  • Can I have my soil tested for chemicals or contaminants?
    • No. Our lab does not test for toxins, chemicals, or contaminants in the soil.
  • Can I bring a wet soil sample?
    • It is preferable that the soil be dry before boxing up. If you can, spread out your soil on newspaper and let it dry overnight before bringing it in.
  • How long do I have to wait for results?
    • The response time on sample analysis varies, but you should typically hear back within 1-2 weeks. If you have not heard back by then please let us know and we can contact the lab.

Contact Us

Taylor Reeder

Taylor Reeder
Extension Agent

Matt Horsman

Matt Horsman
Extension Agent

Contact Us-Matt
Request a Meeting

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