they definitely could start smelling pretty strong towards the end of budding. Depends on strain for pungency but theres a good chance of the occasional whiff going past your neighbors nose while they chill in their backyard. Now what can you do about it? hmm I would say contruct a small greenhouse to the dimensions neccessary, cheaply do-able IMO and just place a bucket of ono gel in the space, problem solved. Or just train them low and let them growWill it be smelling outside when its outside even if its 2 plants? Basically could the neighbors smell ? I have like a garden in my backyard and my yard is pretty big. Thanks