Taking a Soil Sample

You can find out more by reading our Soil Fertility Testing brochure.

Tools needed: a clean, stainless steel spoon or trowel, a clean bucket and a quart size plastic bag.

  • Select a representative sampling area. 

    • Areas of different soil type, topography and management history should be sampled separately.

    • Avoid sampling unusual areas like wet areas or manure piles, unless you are specifically interested in that spot.

  • Scrape away the top organic material such as leaves and pine needles.

    • Do not include grass if you are sampling a lawn. Dig down 6” to 9” or deeper if plant roots will extend further.

  • Place the soil in the bucket.

  • Repeat this 15 – 20 times within the sampling area you selected.

    • Walking a zigzag pattern through the area, taking a sample at each point, usually provides a representative sample.

  • Thoroughly mix the soil in the bucket and transfer enough of the soil to fill the plastic bag half full.

  • Seal the bag and label with the sample location.

  • Fill out the Soil Test Order Form in our Soil Fertility Testing brochure.

    • Do not place the order form in the plastic bag with the sample.

  • Either mail the sample, use one of our courier stops for pickup, or deliver it to our lab.

  • Please include payment with sample.

Call us at (360) 779-5141 if you have any questions about taking a soil sample.