Free Soil Testing
Kansas City, Kansas residents are eligible to receive one free soil test per household per year while funds last.
DOWNLOAD the free Soil Testing Brochure(PDF, 6MB).To obtain a free soil testing kit, visit the K-State Soil Testing webpage.
Take your soil sample to:
Wyandotte County Conservation District
1216 N. 79th Street, Kansas City, KS 66112
What does a soil test tell me?
A basic soil test tells you if the soil has the nutrients for healthy plant growth at levels for most lawns and home gardens. Plants thrive when soil nutrients and minerals are within an optimal range.
A soil test measures soil pH (acid, neutral, alkaline), nutrients, basic minerals, and organic matter in the soil. This includes levels of phosphorus, potassium, calcium, magnesium, and cation exchange capacity (how well the soil holds minerals).
The test does not identify or measure insects, soil-borne diseases, pesticide residues, or other contaminants and cannot answer questions about soil composition, drainage, or compaction.
Samples are sent to the Soil Testing Laboratory at Kansas State University. A report will be mailed to you.
The soil test report shows the result on a scale from “Very Low” to “Very High”. The report gives recommendations to improve soil quality such as adjusting soil pH and nutrient levels or that your soil is healthy, and no additional nutrients are needed. Follow the recommendations for a healthy lawn and garden.
Why should I test my soil?
Soil Health – A key to lawn and garden success is soil health. Healthy soil is the foundation of healthy plants. Soils contain the nutrients, water, air, and living organisms that help create healthy and sustainable lawns, gardens, and landscapes.
If you're spending money on your lawn and landscape, it’s smart to invest in improving soil health.
Testing the soil gives you information about the type and amount of fertilizer or soil amendment needed to maintain good plant health. This can save you money and time and helps the environment, too.
Applying too much fertilizer or nutrients can harm plants just as much as not enough nutrients in the soil. Excess fertilizer may wash away during a rainstorm, flowing into nearby streams or lakes and causing pollution such as algae blooms.
How to Take a Good Soil Sample
Follow these steps to get a representative soil sample for testing.
- Using a clean shovel or garden trowel, dig down to a depth of:
- 4 inches for lawns or pastures
- 6 inches for vegetables, flowers, and small fruits (blackberries, raspberries, strawberries)
- Collect soil from 4 - 5 locations for testing the area. Each sample should be about 1 cup in size.
- Mix soil samples together in a clean bowl or container. Remove all plant material or debris, like roots, sticks, leaves, worms, grubs, and bugs.
- Let the soil dry out in the open air. The soil should be dry, but do not use heat to dry the sample.
- Place two cups of the dry, mixed soil in a resealable, quart-size plastic bag; write your name and phone number on the bag.
- Fill out your soil test form on the K-State Soil Testing webpage.
- Bring the soil sample to the Wyandotte County K-State Extension Office at 1216 N. 79th Street, Kansas City, KS 66112, during the weekday (Monday to Friday) between 8:00 AM and 4:30 PM.
- You will receive the soil test results by mail in 2-3 weeks.
Recommended Videos for Soil Sampling
University of Illinois Extension: Taking a Soil Sample
Division of Agriculture: How to Collect Soil Samples at Home