The plant is 19 days old.But im gonna change lighting sched. to induce flowering on day 25 or 30 of the plants life from seed .Yes it probally is early but due to my last grow the plant grew to 4 ft when it was time to harvest and cannot have that big of a plant again.The flowering stage can last diffrent amounts of time depends on strain .But i thinkthe most common amount of time is 8 weeks