How To Grow and Preserve Shiitake Mushrooms by Samantha Biggers Over the years, my husband and I have grown hundreds of pounds of Shiitake mushrooms using logs from our woodlot. These mushrooms provide extra protein and nutrients to our diet as well as some medicinal benefits. How To Grow and Preserve Shiitake Mushrooms by Samantha Biggers Over the years, my husband and I have grown hundreds of pounds of Shiitake mushrooms using logs from our woodlot. These mushrooms provide extra protein and nutrients to our diet as well as some medicinal benefits.