Answer: Mushrooms often grow in compost (which is probably an element of your organic soil). They are simply growing on decomposing organic matter. As the soil further decomposes it will no longer support mushroom growth. You can simply rake them out of the soil. Raking will also incorporate fresh air, which will slow mushroom growth. The mushrooms won't harm your plants or your soil - they are just a natural part of the decomposition process.
Q&A Library Searching Tips