This is out of the Marijuana Growers Guide-

"The presence of premature female flwoers does not assure that the plant is a female, but premature male flwoers almost always indicate a male plant. Unfortunately, it is much less common for male plants to develop premature male flowers than for female flwoers to appear on ether plant. For example, in one garden of 25 mixed variety plants, by age 14 weeks, 15 plants showed well-formed, premature flowers with raised stigmas. Eight of these plants matured into females and seven became males. Only two plants showed premature male flowers and both of these developed into males. The eight remaining plants did not develop premature flowers or otherwise distinguishable orgaans until the actual flowering stage at the age of 21 wees. From these eight, there were four females, three males, and one plant bearing both male and female flowers. It does seem, however that plants bearing well formed female flowers, on several successive nodes, usually turn out to be females."


How often would you say you found a female preflower but it turned out to be male?
dimondmyne Reviewed by dimondmyne on . Are preflowers reliable to ID sex This is out of the Marijuana Growers Guide- "The presence of premature female flwoers does not assure that the plant is a female, but premature male flwoers almost always indicate a male plant. Unfortunately, it is much less common for male plants to develop premature male flowers than for female flwoers to appear on ether plant. For example, in one garden of 25 mixed variety plants, by age 14 weeks, 15 plants showed well-formed, premature flowers with raised stigmas. Eight of these Rating: 5