An extraordinary mushroom, The Lion's Mane Mushroom Patch (Hericium erinaceus) produces cascading, icicle-like clusters that enlarge to the size of baseballs. a 65-75 degree F environment is needed. Also known as Bear's Head or Monkey's Head, this mushroom is quickly gaining in popularity. Edible and choice, the mushrooms impart a "lobster" flavor when cooked with butter and onions.