Two weeks after topping is a safe time to go 12/12, as long as the plants are otherwise healthy.

Ideally you'd want to wait until you see preflowers (thin white hairs), but if space is an issue then do what ya gotta do :jointsmile:
bigtopsfinn Reviewed by bigtopsfinn on . post topping question. how long until bloom? Hello. I topped a few of my plants a few days back. new leaves already developing, but no white hairs to indicate a bloom (please correct if im wrong). How much longer should I veg for? I was assuming until a nice leave sporuted at least a few inches? thanks! happy growing! Rating: 5