The name of the forum should actually be "Hop Growing" (or "Growing Hops").
Don't worry; it's a common mistake.
If you want to get technical, there's actually a fair bit of lexical idiosyncrasy in how the nouns of transitive gerunds are marked for agreement (which, of course, is the case for all functionally shifted non-finite clauses). For example, though we don't tend to say "beets farming", we do say "sports casting" and "mice eating".
Franco said:Out of you're 3 posts, to of them are trying two correct people's grammer or spelling. Dont worry, its a common misteak.