sharxx101 Posted April 21, 2013 I have bought some mushroom compost and I have noticed that it is a great water saving growing medium for plants. I would like to make my own sometime and I was wondering what culture would be best to use? Would any soil culture be fine? A man that sells plants at the market told me it is best to make your own as some mushroom compost coontains formaldehyde. Any info appreciated Share this post Link to post Share on other sites