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Lion's Mane Mushroom Grow Block Kit Instructions

Lion's Mane Mushroom Grow Block Kit


Lions Mane mushroom grow block

Congratulations, you are now the owner of a lion's mane mushroom grow block. The “block” is composed mainly of hardwood sawdust and wood chips bound together with mushroom tissue or “mycelium” contained in a plastic bag. Mycelium is the white fluffy material covering the outside of the block. The white mycelium is very delicate and you should avoid touching it as much as possible. When moving the block, hold onto the top and bottom to minimize damage.

If you wish to delay the fruiting for a few days, place the block in the refrigerator without opening the bag.




  1. Before you begin, you may need to remove some premature mushrooms from the block. If small pom-pom like growths appear on the surface simply cut open the bag at the very top, reach in with clean hands and pluck off the mushroom growth. Roll the top of the bag down to the block and secure in place with a paper clip, clothes pin, or similar device. Keep the bag rolled up as tight as possible.

  2. Begin the fruiting process by cutting 1 in. long slits or “X's” in the side of the bag over the block. Cut 2-3 “X's” on the long sides, and 1-2 on the short sides. Disturbing the sawdust is OK. Cutting these “X's” into the bag exposes the block to fresh air and encourages mushrooms to grow from these sites. The mushrooms will develop on the exterior of the bag, making them easy to harvest!

  3. Loosely drape the supplied humidity tent over the top of the block. You can safely support the humidity tent with skewers, chopsticks or even wooden pencils poked into the block. Roll up the excess length of the tent to give it some structure. You are trying to prevent rapid drying which will stunt or prevent mushroom growth.

  4. Set your block on an uplifted platform such as an upside down pie pan on a dinner plate. This will allow any excess moisture to drain off and collect in the plate.

  5. Locate a place where your block will receive light, but not direct sunlight. Light is necessary for mushroom development, unlike the common button mushroom which can grow in complete darkness. Mist the surface of the block's bag and the inside of the humidity tent with water from a spray bottle as often as you think about it. Several times a day is not too much but at least twice a day is recommended. Avoid misting the developing mushrooms directly or they may become soggy and start to rot.

  6. The lion's mane block will start mushroom formation about a week after initiation. Normal room temperature is great, 65-75F. They will first appear as small bumps and then quickly mature into fully formed toothed mushrooms. Harvest your mushrooms when the top of the mushroom near slit in the bag begin to turn brown/tan. Remove all mushrooms large and small by pulling them off at their base when the majority reaches maturity. After harvesting, your block will go dormant for about a week. Continue to mist during this period of rest. Repeat the cycle until no more mushrooms appear. Your block should produce 3 to 5 cycles of mushroom crops before becoming exhausted. Near the final crop the block will be surprisingly smaller than its original size.  

Everything Mushrooms – 1004 Sevier Ave – Knoxville TN 37920 865.329.7566 - http://everythingmushrooms.com