What is Soil3?

What is Soil3?

Organic Compost / Humus Soil

Soil3 is 100% organic compost comprised of grass clippings from our sod farm, wheat straw from our farm, and cow manure from a local dairy. We compost using a high heat method (160º) and add mycorrhizea. Beneficial microorganisms naturally colonize the compost as part of the process. You can use this organic compost as humus soil. (Learn about humus compost and soil here.)

Our compost is not created using random carbon and nitrogen sources that may be contaminated. We have control over the inputs - growing the sod and wheat ourselves and contracting with a dairy that feeds their livestock silage. It's important to know where compost inputs come from and we can tell you exactly about ours.

Here's a short video on our composting method:


You will not find these materials in Soil3:

  • Organic Compost / Humus Soil in Gardenno sludge (a.k.a. biosolids, the new code word for human waste)
  • no peanut hulls (peanut hulls carry a bacterial disease)
  • no vermiculite, perlite, or bark fillers
  • no peat filler (peat harvesting is not environmentally sustainable)
  • no large particles or mulch-like texture - Soil3 is thoroughly composted and finished by screening for a fine-grained texture
  • no "killer compost" because the inputs were never treated with the class of persistent herbicides called pyridine carboxylic acids that contain picloram, clopyralid, aminopyralid, or aminocyclopyrachlor (Imprelis)

So, why is all of this important for your lawn and garden? Watch our fascinating and informative agronomy video. Learn why we make Soil3!

Soil3 is approved by the Organic Materials Review Institute (OMRI) for certified organic gardening. Many composts claim the word "organic," but are in reality far from it. Check with OMRI ( to verify authenticity of organic claims. We are OMRI Listed!

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