Flowering time

Hello,

I am planning on growing plants from seeds and was wondering how long after they sprout can you effectivly flower them. I know that you need to wait for them to mature but I was wondering how long you would have to wait before I should start a 12 hour cycle.

Thanks

Apparently you can do this as soon as they sprout. If you are thinking about doing it, I would wait till they are at least 4-6 inches tall. You won't get much out of the plant thought.

i must say
wait until they have maybe 1month growing under a 400 w mh
1month and a half or 2 month under cfl , fluos
like i did
my plants got 2month of vege or even more under fluos
and now there in there flowering stage with a 600w hps hortilux
men i cant wait till june