If you trim them back it could be stressful to them and cause herm, but if you are living in the US the days are getting longer and there is no way they can be flowering without getting at least 12 hours of darkness which doesnt happen until around september october. A few small plants wont stink all that bad until they are midway through the flowering cycle and you have to be up close to them. outflower means nothing unless he means autoflower in which the plant will flower without needing the 12 hours of darkness.