What kind of climate do you have? It was my understanding that they required a cool climate to grow.
I live in the Sacramento area in El Dorado Hills near Folsom Lake.
All 8 varieties grew just fine last year.
http://www.sacramentohistory.org/films_hopfarm.html
How to Grow a Beer: The Amazing Rebirth of a Sacramento Beer
http://youtu.be/lt17fK3DJRM