My present grow is in flower for 10 days and some are showing serious flowering already. These plants were about 2-3 weeks from seed when I put them into flowering. Some of the other plants were from 1-2 weeks of veg time. I usually go eight full weeks but this is a SOG sativa grow so I need many plants in a small space. These sativas will go from 10 weeks up to 14 weeks in flower.