If you grow plants from seed, you cannot do this. Well, you can put them in 12/12, but cannabis plants aren't sexually mature after only a week, so they will veg themselves until their sex is determined, regardless of the light cycle. Clones from a sexually mature mother can be flowered at one week though.
jamstigator Reviewed by jamstigator on . 7days veg. then flower?! Can this be done? Im still in the process of my first grow and after watching a grow video on google video (http://video.google.com/videoplay?docid=-8764935838656123813&q=grow+marijuana) and taking note, in that video they only grow the cuttings (clones) for 7 days and after that they go straight into flowering mode. I was a bit shocked because I thought you have to veg. for a 4 weeks or so before going flowering mode. If this is true and you can just veg. for 7 days then I'm going to use this schedule on my Rating: 5