We’ve had many requests for mushroom compost over the years. We are pleased to announce that we have added this to our extensive list of landscape products. With that in mind, we’d like to share some information about mushroom compost to help you make an informed decision about your purchase.
Mushroom compost also is frequently referred to as “mushroom substrate,” “mushroom soil,” and “spent mushroom compost.” It is comprised of a variety of material including wheat straw, peat moss, corncobs and lime, among other ingredients. Prior to use, the materials are composted for several weeks and then sterilized before being transferred to growing trays. Mushrooms are then planted in the compost. After the mushrooms are harvested, the compost is pasteurized with steam to kill any insects, pathogens or mushroom remnants.
The combination of ingredients in mushroom compost provides a multitude of plant benefits, and since it has been thoroughly cleaned twice, your plants have a perfect environment in which to grow.
Here are some things to keep in mind when it comes to mushroom compost:
- You don’t have to worry about contaminating your flower beds or gardens.
- Mushroom compost has a slight odor when it is first applied. Don’t be concerned – this is good. The decomposition of the ingredients is what provides the nutrients to your soil. The odor will dissipate quickly.
- Do not plant directly into mushroom compost. It is too strong for this type of application. Use it as a top dressing on plants with an established root system.
- Mushroom compost may inhibit the spread of “artillery fungi” that occasionally appear in gardens and flower beds. Studies at Penn State University show that mushroom compost can act as an organic bio-control agent that suppresses various undesirable fungi in landscaped areas.