I was at his house a few years ago. It really is a neat place. I plan to try it someday. They can point you to large resinous container tubs that are used.
http://www.app.com/article/20110619...-plants?odyssey=mod|newswell|text|Frontpage|s
http://www.app.com/article/20110619...-plants?odyssey=mod|newswell|text|Frontpage|s