Who is phillips mushroom farms? Based in Kennett Square, Pennsylvania — the Mushroom Capital of the World — Phillips Mushroom Farms is the largest grower of specialty mushrooms and a leader in overall mushroom production.Where can i buy mushrooms in ohio? 1 Avant Garden Farm and Mushroomery, Youngstown, Ohio, USA 2 County Line Mushrooms, Fredericksburg, Ohio USA 3 Dickie Bird Farm, Chillicothe, Ohio, USA - Facebook 4 Down the Road Farm, New Lexington, Ohio, USA - Facebook 5 Erie Shore Seed and Spore, Vermilion, Ohio, USA - Facebook 6 Forest Fungi Farm, Hiram, Ohio USA More items... Where are the best places to grow mushrooms in wisconsin? Wisconsin 1 Birch House Farm, Verona, Wisconsin, USA 2 Ernessi Farms, Ripon, Wisconsin, USA - Facebook 3 Field and Forest Products, Inc., Peshtigo, Wisconsin, USA 4 Grow Local, Neenah, Wisconsin, USA - Facebook 5 Hazel Hill Farm, Arena, Wisconsin, USA - Facebook 6 Herb'n Oyster Mushroom Farm, Madison, Wisconsin, USA More items...