Deep Mulching: Give Your Garden the Gift of a Cozy Winter Blanket



A search for “Ruth Stout” on MOTHER EARTH NEWS turns up a range of links to articles, letters, and blog posts from 1976 through the past decade. Stout is best known for her year-round deep mulch recommendations found in her 1955 book, How to Have a Green Thumb Without an Aching Back. It’s no wonder she remains popular. Who doesn’t want healthy soil and hearty plants with fewer weeds and less work?

The Stout System, as it came to be called, is simple: Spread a thick layer of spoiled hay (this is material that for some reason got wet and moldy and can’t be used to feed animals, plus any combination of leaves, grass clippings, and other vegetative compostable materials) and leave it on year-round. Stout recommends starting with 8 inches and then, in her own words, “As it decays and enriches the soil, I add more.”

I can’t remember when I first heard of Stout. I am sure I wasn’t much of a mulcher when I was just gardening for myself and my family. But mulching heavily with straw was something we adopted as soon as we began farming. I still remember the first time I spread it around our backyard micro farm and exclaimed, “Now it really feels like a farm!”

Ron Engeland’s tips in Growing Great Garlic (1991) offered early inspiration included covering beds in multiple inches of compost and straw, in both the fall and spring. I quickly saw how this cut down on labor and helped retain water. Years later I still marvel when I stick my hand under a deep layer of mulch after weeks without rain and feel moist earth below!

A few years back I remember hearing Dan Kittredge of the Bionutrient Food Association speak at a Ohio Ecological Food and Farm Association (OEFFA) conference. The conference is held in February, historically our coldest month of the year. At one point, he spoke about the importance of roots (both living and rotting) for providing microorganisms in the soil something to live in concert with. He touted cover crops as a good way to keep the soil thriving outside primary growing seasons. The worst thing you can do, he chided, is have bare soil. Bravely, another attendee raised their hand and asked what we could do if we hadn’t planted cover crops, given that it was too cold to start anything at the time. Kittredge’s recommendation: Go home and mulch, with whatever you have! I had my marching orders. I went home that night, pulled some bales of straw a neighbor had given me after Halloween decorating season and got to work.

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