- 1. The Jar Test (Soil Composition Analysis)<\/a><\/li>
- 2. The Ribbon Test (Clay Content Check)<\/a><\/li>
- 3. The Drainage Test (Percolation Rate)<\/a><\/li>
- 4. The Squeeze Test (Moisture Retention)<\/a><\/li>
- 5. The Visual Observation Test (Structure and Health)<\/a><\/li>
- FAQ About Tests to Identify Your Soil Type<\/a><\/li><\/ul> \t\t\t<\/div> \t\t<\/div><\/div>
1. The Jar Test (Soil Composition Analysis)<\/h2>
![\"Blue](\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2025\/12\/soil-jar-test.jpg\")
Soil in jar. Photo Credit: Natali<\/a> \/ Adobe Stock<\/figcaption><\/figure> With the jar test, you can see exactly what\u2019s in your soil \u2014 whether it\u2019s mostly sand, silt, or clay. This simple home soil test works like a science experiment, letting different soil particles separate in water so you can see each layer clearly.<\/p>
There\u2019s just one caveat: \u201cIt can take several days for the smaller particles of clay to settle,\u201d says Christopher Enroth, horticulture educator at the University of Illinois Extension.<\/p>
What you\u2019ll need:<\/strong><\/p>
- Clear glass jar with a tight lid (like a mason jar)<\/li>
- 1-2 cups of soil from your lawn or garden<\/li>
- Water<\/li>
- A teaspoon of dish soap<\/li>
- Permanent marker or tape for labeling<\/li> <\/ul>
How to Do the Jar Test<\/h3>
- Fill your jar about 1\/3 full with soil (remove any sticks, leaves, or pebbles).<\/li>
- Add water until the jar is nearly full, then add a few drops of dish soap. Enroth says dish detergent helps separate the soil particles.<\/li>
- Shake the jar vigorously for a full minute to mix everything up.<\/li>
- Set the jar somewhere still and leave it undisturbed for 24 to 48 hours.<\/li> <\/ol>
Expert Tip:<\/em><\/strong> Enroth recommends breaking up the soil sample to avoid large chunks. He also notes that \u201csand will settle quickly, silt will take a few hours, and clay can take days to settle.\u201d<\/em><\/p>
Reading the Results<\/h4>
After the soil settles, you\u2019ll see clear layers \u2014 sand on the bottom, silt in the middle, and clay on top.<\/p>
- Thick sand layer:<\/strong> You have a fast-draining soil<\/li>
- Thick silt layer:<\/strong> Holds more water than sandy soil but less than clay soil<\/li>
- Thick clay layer:<\/strong> Slow drainage, but better nutrient retention<\/li> <\/ul>
You can also measure each layer with a ruler:<\/strong> Enroth suggests you \u201cuse a ruler to measure the layers and then reference the NRCS soil triangle.\u201d Just match the percentages of clay, silt, and sand on the triangle\u2019s edges. Where the three lines meet tells you your soil type.<\/p>
- Thick silt layer:<\/strong> Holds more water than sandy soil but less than clay soil<\/li>
- Thick sand layer:<\/strong> You have a fast-draining soil<\/li>
- 2. The Ribbon Test (Clay Content Check)<\/a><\/li>