How does your mushroom grow?

A Wet And Wild Look Inside The 'Mushroom Houses' Of A Fungi Farm

While mushroom farming may not be as thrilling as fungi hunting, a 2014 video from the Web series "How Does It Grow?" shows that it's still an interesting sight. In it, journalist Nicole Cotroneo Jolly takes her viewers to Phillips Mushroom Farm, one of the largest producers of button and exotic mushrooms found in Chester County, Pa.

The U.S. produces 900 million pounds of the savory fungi a year, including both button and exotic species. And it's a billion-dollar industry.