Garden #307238 - Ask Extension


Garden #307238

Asked March 15, 2016, 2:47 PM EDT

I need to take some soil samples from a garden 50 feet by 150 feet how many samples do i need to take and how long does it take for them to come back.

Jefferson County Kentucky

Expert Response

The following is our routine soil testing instructions through the University of Kentucky (also apply for UMass soil testing, with the exception of the price):

 *Take multiple examples of the area to be tested, 4 to 8 inches down.

*Mix these together to equal 2 cups of soil.

*Allow to dry thoroughly.

* Put in clean baggy/container and bring to the Extension Office at 810 Barret Ave.


The test result are mailed to you (we get a copy too) with your soil’s pH and readings of major and minor nutrients along with information on how and what to change for the plants to be grown there.It takes approximately two weeks for the results to be returned.

For more details on taking a soil sample:

At this time UK only tests for pH and nutrient levels. Unfortunately we do not test for heavy metals, biological contaminates or pesticides.

What we test for:

As some urban gardeners are worried about lead in their soil, we can help with that too. We work with the University of Massachusetts, they require 2 cups of dry soil for heavy metal and soil testing. It can be sent to them through our office. You will receive results for the level of lead in your soil, for metals, and the pH and nutrient levels. The cost of the lead testing is $17.00 with results, which are very specific, in approximately 2-3 weeks.

Feel free to contact our office if you have other questions.

Let me know if I can help you further!

Carol Wilder
Horticulture Technician
Jefferson County Cooperative Extension Service
810 Barret Ave
Louisville KY 40204

Carol Wilder Replied March 16, 2016, 4:01 PM EDT

Loading ...