The only folks that really deal with hop seeds are the breeders. Growers don't want any male plants around because then the cones on the female plants won't be marketable. So what you'll find for sale are the roots. They are expensive, I think, since established plants are monsters that want to spread all over! Maybe some hop starts would make good prizes for a contest next spring! I have always got some to control! I'll put that in my calendar with a reminder!