Mushroom Soil

Mushroom soil or mushroom compost is a great organic amendment for enriching the soil used to grow fruits, vegetables, and even flowers. I’ve written about mushrooms quite a bit in the past few weeks, from indoor mushroom kits, to growing mushroom logs outdoors.

Enrich Garden Soil With Mushroom Compost

This entry doesn’t have anything to do with growing them, but rather how you can use mushroom soil in the garden to fortify the soil, increase the depth of your raised beds, and improve your soil’s texture.

Mushroom Compost PhotoMushroom soil is a by product of the mushroom farming industry and consists of the bedding material (straw, manures, and other organic matter) that is left over after the mushrooms have been grown and harvested. 

You can obtain scoops of composted mushroom soil from most nurseries and garden centers that sell tan bark and garden mulches. I purchase a truckload once every three or four seasons to incorporate into the garden’s raised beds.

Applying Mushroom Soil to the Garden

Fall is probably the best time to add mushroom soil to the garden, that will allow it to age and mellow over the winter. For convenience I’m usually not able to add mushroom compost until early spring, much closer to the planting season than I would prefer, but I haven’t noted any problems with over fertilization or burning of the plants or seedlings.

To be cautious I only add a two inch layer of the mushroom compost and mix it well into the top four inches of the soil in the raised beds. During the seasons that you incorporate the mushroom soil reduce the amounts of other organic fertilizers which are added to the garden.

Mushroom soil is inexpensive particularly if you purchase it by the truckload, and is especially beneficial if you’re unable to obtain or make regular compost to add to garden beds. In order to be certified as organic the mushroom soil must be composted at the required temperatures and avoid the addition of prohibited additives.



Other Related Vegetable Gardening Posts:

This entry was posted on Tuesday, February 28th, 2006 at 12:00 am and is filed under Mushroom Growing & Edible Fungi, Organic Fertilizer & Pest Controls. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

6 Responses to “Mushroom Soil”

  1. Kevin McClafferty Says:

    I have mushroom soil and I want to know how to take some of the smell away.

  2. Kenny Point Says:

    Kevin, where did you obtain your mushroom soil? It usually goes through some type of pasteurization process and it really shouldn’t have a strong or objectionable odor to it at all. If you are working with fresh mushroom soil that hasn’t been sterilized then I would not use it in the vegetable garden.

  3. jazzy Says:

    “In order to be certified as organic the mushroom soil must be composted at the required temperatures and avoid the addition of prohibited additives.”

    I have access to a bunch of mushroom soil that’s been sitting behind a house for some years now. Do you think it’s ok to use since its been sitting there for awhile?

  4. Kenny Point Says:

    Age wouldn’t affect the usefulness of the mushroom soil as long as it hasn’t been collecting weed seeds while it was just sitting there. Some of the nutrients may have been leached out but it can still be used to increase organic matter in the garden.

  5. My Organic Garden - Herbs, Fruits, Vegetables Says:

    [...] my small organic garden, which I started two years ago. All my plants are cultivated in a mix of mushroom soil and organic gardening soil. I do not use any additional fertilizers, and definitely no [...]

  6. sandrar Says:

    Hi! I was surfing and found your blog post… nice! I love your blog. :) Cheers! Sandra. R.

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