What is Soil<sup>3</sup>?

What is Soil3?

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 mycorrhizae. 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.)

Buy Soil3 Now

How is Organic Compost / Humus Soil made?

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.

The dairy cow barn pads and our own windrow pads are made of sand. When the cow manure is scooped up, a little sand is entering the compost. Likewise, when our windrows of cooking compost are wetted and turned and finally scooped into the BigYellowBags, some sand is entering the compost at those times too.

We use Soil3 on our own clay-based fields and in our own garden and welcome this smattering of sand as an ingredient that improves drainage and soil structure.

Soil3 Composting Method


Soil3 Compost Benefits

  • 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!

OMRI Listed Compost

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!

Order Soil3 Organic Compost

Find an organic Soil3 Compost Dealer near you to Order Soil3 Products. All of our Soil3 dealers offer Soil3 in half cubic foot and cubic yard bags as well as Doc's Raised Garden Bed Kits

Find a Dealer Near Me