Hello! I am new to permaculture and medicinals, however I did just grow some shiitake mushrooms from a local (Missoula) mushroom company. They do sell a lion's mane kit. It looks like they sell it as a culinary mushroom; I am not sure if it is usable as a medicinal or perhaps you just need a whole bunch! Their website is www.gardencityfungi.com
~Michelle
