[swapsmagic]

Pretty much every vegetable seeds bought from store are viable, it just for some vegetables (i.e. bottle guard, okra), store bought vegetables aren't ripe enough and so those seeds won't able to germinate. To germinte the seeds of any vegetables, the fruits has to be matures (some times on the plant, sometimes on the shelf) before seeds become viable to germinate. I don't know a single vegetable that will be sterlite. I know some Mangoes (coming outside of US) do get sterlite and so their seeds won't produce plant even if the seeds are mature.