look throught the forums and look at the pages, becuase alot of people ask trhat questio and we answer, well anyway, yes, cut it off as way down as u can go, because it wastes the energy of the plant and will make it weaker, and i dont think you want seeds, if you do you can buy some from this web site, the bulb rhizome, if you tkaes the seeds from the stakls i think it will take up to 2 years for it to be a decent size
so cut them off