This straw-like growing medium was used to grow dhingri (oyster) mushroom. However, due to climate getting hotter here, the mushroom died, and now I am thinking if this medium is suitable for compost bin or better for mixing with soil to ammend? Or I need to just throw away this mulch like stuff?

enter image description here enter image description here

  • 1
    Looks like great C (carbon) source for healthy composting.
    – benn
    Feb 20, 2021 at 8:46
  • @benn can there be too much carbon that can harm the plant?
    – 4-K
    Feb 20, 2021 at 8:58
  • No, carbon is not bad for the plant. But for healthy compost you need the right ration C:N (carbon:nitrogen). If that is not the case the compost bin will smell and will not optimally compost (verb).
    – benn
    Feb 20, 2021 at 9:35

2 Answers 2


Due to the long-straw nature of the fibres it will probably be hard to mix with other soil components so as far as that goes unless you can chop it smaller compost is a good idea; the rotting process will shorten the fibres and make them easier to mix up.

One use you might like to experiment with would be the same technique as using coir to grow salad leaf vegetables. The idea there is that the medium drains very well and allows roots to penetrate easily where they get lots of air. Since you are not growing the plants to maturity but just until they have enough leaf area that they can be cut for harvest, the problem of what happens when the plant grows big and starts demanding anchorage and nutrient variety never has a chance to occur.

If that works then cutting the leaves and immediately turning over the medium with salad roots intact would lead to a quick and efficient composting process.


I used tons of similar material (Campbells Soup commercial mushroom farm gave it away after use). I think it worked but I used it on everything so I have nothing to compare it to.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.