veg for 6-8 weeks also u can put ur plant under 12/12 within the first 2 weeks u will still get some yeild and keeping it healthy can produce 1 gram per watt but that is only strains like sativa,also doing it this way u have to flower for about 8-10 weeks due to los sof the vegetation stage.
check out my grow journal in my signature i am doing 2 weeks veg then 12/12.
thanks and gl in growing man