Can I bring plants inside for 12 hours of darkness

You'd be better off just keeping them outside until they naturally change. It'll be best because we always end up running into situations that leave us running behind ect... Just Google when your cities daylight hours each drop to 13.5 give or take. Some outdoor plants will start flowering when daylight drops to 14-13.5-13-12.5 ect... Plus letting them bulk up a bit more in full sunlight can drastically improve yields. Also as someone else said moving plants around is a good way to bring mites and aphids indoors which isnt fun.


I'd train them some with some light LST and they'll start flowering here before long anyhow.

 

Plants can easily flower in 13/11 schedule. 12/12 is just a guideline for indoor growers but plants will flower outdoors in those hours when they are ready... Most strains will atleast

 

Yeah gradually switch over but don't start feeding to much at once they look perfect as they are so keep the same doses for now just taking way 1/4str of veg nutes with 1/4str of bloom nutes ect and keep doing that until you are giving them just the flower nutrients and Cal+Mag.

But moving them inside seems pointless imo they'll start flowering regardless in 13/11 hours and you don't want to track bugs inside so it would be best to just keep them out. The only times id move them in a garage or she'd are if temp's are going to drop to the 30's or a heavy storm was coming. I wouldn't bring outdoor plants inside the home though because of my indoor grow.