When do you put your plant into flowering stage(Pics)

My plants popped there heads out of the soil 3 weeks tommorrow. Should you wait atleast a month or can you go by there size? The first 3pics are my biggest then 2 of each other plant that sarted a couple of days later. What do you think? They have been on 24/7 light th whole time.

you could start now if you wanted, depends how big you want them

i want them about 4 feet or so. My cieling is 8' 5 by 6'room. I have alot of room

i believe they grow like 3-4' in the flowering stage. you should FIM them make em short and bushy

what lights have you got?

well the general rule of thumb is they should be atleast 12"s tall and have 5 sets of nodes b4 u flower but it seekms to be u can do what u want lol