“We know more about the movement of celestial bodies than about the soil underfoot.” Leonardo Da Vinci

This article is excerpted from the Spring 2024 issue of Plenty Magazine. We present the initial portion of the article. You may then link to Plenty’s website to read the remainder of the piece, and see the charts and photos that accompany it.

Stand outside during the tail end of winter and the local landscape is quiet, a palette of soft grays and browns—dormant-seeming, except for the scurrying of squirrels or a line of honking geese overhead. Deciduous trees are largely bare, apart from oaks and beeches, whose dead leaves cling to them for most of winter—a strategy dubbed marcescence—but that’s another story. No new sprigs of green, no burst of floral colors. By early March, many of us are desperate for spring, overflowing with signs of its rebirth.

But just below our feet lies an entire world whose activity barely shows all winter, a vital realm brimming with as much life, if not more, than we can see in plain sight. In reality, there are more living organisms in the soil than all the other life forms above ground! When we aren’t disrupting their work, the nourishment they help liberate is ready the moment the soil warms enough to activate growth in plants and to awaken seeds. In fact, “Soil is alive. Much more than a prop to hold up your plants, healthy soil is a jungle of voracious creatures eating and pooping and reproducing their way toward glorious soil fertility,” says Kathy Merrifield, a retired Oregon State University scientist.