It depends on how badly its hermied. I had one about 6 months ago that went completely "balls out" for no obvious reason and it was so bad that plucking the nanners was a ridiculous notion. Yesterday, I pulled one out of my garden for 3 different seed pods on a large plant. If there were 3 that snuck by me (even though i checked every 3 days because i KNOW where the seeds came from) then there is a strong possibility that it will try to produce many more and "go balls" out since it wasn't due to stresses. I have another that got root-bound in veg and I could not recover it so i pushed it into flower and i check ever bud daily. It had 1 nanner about 2 weeks in but i plucked it and keep a close eye but she's been fine and is budding nicely, considering. So my advice; unless it goes "balls out", pinch off the nanners (i eat them to avoid them spreading and the energy doesn't go to waste) and keep a close eye on her. If she puts out more nanners then she's done for. Put it in the hash pile or cook it. Another option, cut/cure/flip to someone who doesn't care about premature buds.