County Gardeners Extension Express

As the end of our warm season lawn’s growing season begins to wind down as the days become shorter and temperatures begin to drop, even though it doesn’t really feel like it right now, and we look toward the dormant period for our lawn, now is a great time to take a soil test to determine what deficiencies our soil may have so we can make adjustments or plans for the upcoming year. Depending upon the species of turfgrass you are growing, lime may need to be applied to raise the pH of your soil. This is typically recommended to be done over the dormant period as it can take time to adjust the pH and this allows for the adjustment to be completed by the time the turf begins growing in the Spring.

When submitting a sample for testing, it is best to take multiple, small samples compiled together to get a representation of the area being tested rather than one large sample from the area. This helps even out any irregularities within the sample and represents the area better that may have small differences in soil type, drainage, or management practices. It is recommended that if there are major, known differences in any of these, then separate samples be submitted for those areas. The more samples you submit the more detailed you can make your management practices. This can be a good first step in helping identify possible differences in plants that are healthy and thriving vs those that may be struggling a bit.

A good sample depth is typically within the rootzone of the crop being grown (Ex. 3-5 inches for lawns). Submitting your test now gives you the ability to lay out and organize a plan for next year so you aren’t caught off guard by a possibly early spring. You can get any needed fertilizer materials over the coming months as opposed to rushing to get them at the last minute once the growing season begins.

Please contact your local county Extension Agent if you would like assistance interpreting your soil test results.

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