Comment on A really nice Lions Mane is fruiting!

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remotelove@lemmy.ca ⁨11⁩ ⁨months⁩ ago

Sure! Let’s start with the obvious. What you are seeing are blocks of sawdust and wheat bran (substrate) in a humidity and temperature controlled grow tent. In this case, you are also seeing the fruit of a Lion’s Mane mushroom. (Hericium erinaceus is an interesting species. Instead of forming a standard stem and cap, it forms dense balls that grow spines that resemble an actual lions mane. (Mature fruit picture in the link)

To start the grow, I take a few sterilized jars of partially cooked grain (rye berries, rice, millet or whatever) and inject a culture of mycelium. The mycelium will develop and spread at a fast rate and eventually fill the jar and cover all the grains.

When I start the grow, I load up a grow bag with a few pounds of substrate, and sterilize the bag in a pressure cooker for a few hours. After they cool down, I mix in a fully colonized jar of grain, seal the bag and put it in a warm area for 2-3 weeks. The mycelium spreads through the substrate and eventually it is ready to fruit.

By dropping the temperature a few degrees and cutting a hole in the bag, I can trigger the mycelium into fruiting. Fresh air, lower temperatures and higher humidity make the mycelium “think” it has gotten closer to the soil surface and that winter is coming soon. As a form of self-preservation, it forms it’s fruit in preparation to spread its spores. In this case, I will harvest the fruit in a day or so before it sporulates and becomes bitter. After this fruit is removed from the bag, it may produce 2-3 more fruit bodies before the substrate is fully consumed by the mycelium.

Basically, I am simulating a rotting tree and seasonal changes with the block of sawdust substrate and controlled environment.

Different mushrooms have different environments and substrates they prefer. If you look into my profile from the last day or so, I have posted some pictures of baby psilocybe cubensis mushrooms that are forming on a substrate of coco coir.

Would you like to know more?

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