Agriculture Reference
In-Depth Information
Flowering stage
Pre flowering
Near the end of a normal vegetative growth the plants grown from seeds develop pre-
flowers. The pre-flowering usually begins when the cannabis plant is old enough to show
sexual maturity. This usually occurs six to eight weeks after germinating the seeds. The pre-
flowers emerge behind the stipule at the fourth to fifth branch internode. Assure that the
plant is a female by inspecting the pre-flowers. If you find pistils, it is indeed a female.
The flowering period can be induced when pre-flowers have been established and you are
sure of the sex. Starting the flowering could not be easier indoors. You change the light cycle
to 12 hours of uninterrupted light and 12 hours of complete darkness. After introducing the
plants to the new light cycle there will be a slight delay before the female plants start to
flower. Normally a female will show signs of flowering after 1-3 weeks. Flowering always
starts at the top of the canopy and gradually develops on the lower branches as well.
The un-pollinated female plant continue to flower until calyx formation and resin production
peak out. Cannabis plants usually peak six-ten weeks after introducing the 12/12 hour light
cycle.
