The soil is where wheatgrass absorbs nutrients, air, and water. Growing wheatgrass with good quality soil almost guarantees good growth. If you are using wheatgrass because you have a health problem, it is most important to use a soil that you know is free of toxic chemicals and pesticides.

Potting soils sold by the bag at nurseries and home improvement centers may or may not contain good soil. Since there is no legal definition of  potting soil, anyone may put anything into a bag and call it potting soil. The soil may have been stripped from a cornfield that has had thirty years of chemicals dumped on it. At least look for soil that claims to be certified organic to get some assurance that your wheatgrass is not being grown on soil that contains synthetic chemical fertilizer and pesticides.If you or a friend has an organic garden, that soil may grow good wheatgrass if it is free flowing with good drainage ( and free of stones). Ultimately, finding the right mix is largely a matter of trial and error. Try the soil to see if it grows good quality wheatgrass.

To increase the volume of our soil and reduce its total cost, you may mix it with premoistened peat moss ( sphagnum peat moss is best) or vermiculite. The soil we use and sell does not, however, contain  peat moss or vermiculite. The only thing we  add to our soil is washed masonary sand to increase drainage and make it free flowing. Occasionally in winter we add  small amounts of compost bioactivator to hasten decomposition.We never add any animal manures to our soil.

Worms thrive in our soil after we add harvested root mats to the compost boxes. They eat the root stubble and bits of wheatgrass and salad greens. The worm castings they leave in the soil are one of nature's finest fertilizers which helps to grow high quality wheatgrass.
 
 

If you don't have unlimited amounts of soil we recommend you use a shallow tray like our 1/2 inch deep 10"x14" tray. Here at Gourmet Greens we have an abundance of soil so we use the 2 inch deep 10"x20" tray. Deeper soil grows longer and usually greener wheatgrass. Also the 2 inch depth has more water holding capacity. But for home use the 1/2 inch deep tray works fine.  The soil we sell can also be used to grow sunflower greens, buckwheat lettuce, radish and snow pea greens. See a picture of a flat of wheatgrass on a 1/2 inch deep10"x14" tray at http://www.gourmetgreens.com/10X14.JPG