Shiitake Mushroom Log Care

Overwintering
Your Log

Now that you have your logs inoculated and ready, the biggest challenge you will have is to wait. As Paul Stamets, author of Growing Gourmet and Medicinal Mushrooms, says this is “the Strategy of Benign Neglect”.
The logs will need to be watered every few weeks if you don’t get any rain. A 5 to 10 minute steady watering should be fine. Then, simply store them off the ground in a shady spot. A concrete block or even 2 regular bricks set on their side will keep them off the ground. If the temperature is freezing outside, just leave them alone and let the mycellium grow. A shade tarp might also be helpful if you don’t have a good spot. A piece of burlap or shade cloth suspended at least 4 inches off the log is best. Do not use plastic to cover your logs; this will cause mold to form.

Fruiting the Logs
Your logs could be ready in as little as 6 months. However, the longer you wait the better the crop will be. I recommend at least 8 months, though the smaller the log, the sooner it will be colonized. The best results will be after 12 months. You can check the progress by chipping a little bark away near one of the plugs. If you see little white fibers then you know you are ready.
Now for the fun part. When you are ready to fruit the logs, just submerge them in water, or water them with a sprinkler (or rain), for at least 24 hours. Try not to use chlorinated water for this. Spring, well, or rainwater is best. I have heard of people using boiled tap water, but I have never tried it. Once this is done, simply water them 2 or 3 times a day unless it rains. I like to fruit mine just before a rain is expected. Moisture is very important, and you really can’t have too much. Shade and temperature are also very important. The ideal temperature for fruiting is between 50 -70 degrees, although with the right amount of shade and water I have produced at times when it was in the high 80’s during the day. Freezing temperatures will not work for obvious reasons.
Your mushrooms should start to be visible within a week if all goes well. They can form in the holes where they were drilled or wherever there are cracks or holes in the bark. Keep them wet and wait until the mushroom is fully developed. The cap should be opened and you should be able to see the white gills underneath. Once this happens cut them at the base of the stem, rinse and enjoy!
I recommend letting your logs rest after each harvest for 4-8 weeks. During the dormancy period just leave them alone like you did after inoculation. Then, repeat the process of soaking and watering. This process can be repeated whenever weather conditions permit. Logs can produce for as many as 3-5 years when cared for properly. Remember we are dealing with Mother Nature here so be patient, and have fun!

About Slugs
One of the biggest problems I have had with producing logs is the slug, or snail. They seem to love mushrooms as much as we do and can really wreak havoc on a harvest. The best solution I have come up with is to water my logs in a different area from where they are stored. I move mine from a watering spot after they have dried a little and keep them there until they are ready to water again. The moisture your logs need also draws the slugs. Sprinkling a trail of salt around where you store the logs also helps.
John Whittemore,
Blues Hill Farm
192 Darl Ln. McMinnville, TN 37110
blueshillfarm46@yahooo.com