Sexing cannabis plants is vital for maximising your harvest. In this article, you’ll learn how to sex your marijuana plants (even before they flower), when flowering occurs, and how to induce flowering.
Sexing marijuana plants helps separating male from female plants. It only becomes possible to tell whether cannabis plants are male or female once the flowering cycle has begun.
Cannabis begins to flower when it receives 12 hours of light and 12 hours of uninterrupted darkness in each 24-hour cycle.
Once this light cycle (or photoperiod) is initiated, plants enter the pre-flowering stage, when they increase in size as the branch structure prepares to bear and support flowers.
How to tell if your plant is male or female before flowering?
During pre-flowering, which usually lasts about 10 days, it is still not possible to identify the sex of the plant. The first flowers should be visible within two weeks.
Female cannabis plant
Male cannabis plant
Using feminized seeds or automatic seeds should eliminate this process as they are bred to produce plants that will flower as females.
Inducing flowering for sexing marijuana plants
Indoors, it is the grower who decides when to alter the photo…