You can grow mushrooms in straw, sawdust, compost, even coffee grounds. But my grandson Austin is growing them on logs in his backyard. He ordered hundreds of plug spawns for such hardy species as Lion’s Mane, Shiitake, Pearl, and Blue Oyster. As you can see in the photo below, the sterilized birch plugs are spirally grooved. The little wooden bullets come fully colonized with pure mushroom mycelium and ready to implant in oak logs.
Follow the step by step process below. It takes almost a year to get mushrooms with this procedure. If you’re impatient, you can order a mushroom growing kit that comes with a small log already loaded with mycelium. All the wood pieces need is watering and you have fungi in a matter of days. But this is more fun.
Backyard Mushrooming: How It’s Done