12/12 at 3 Weeks: problem.

It has been 11 days since the switch to 12/12 and there is still no signs of sex. Wtf is happening? No light leaks by the way.

Give It Some Time, If They Look Healthy, It Might Just Take A Min. Took Mine 2Weeks 3Days My First Time

i have some blue cheese and some amnesia lemon plants that i put into flower with only one and a half weeks of veg. they didnt start showing sex until about three weeks. some took longer. actually this is all very recent and one still hasnt shown sex. so it might take up to four weeks for that plant.

my plants that i vegged for a month+ showed after 3-7 days.

so age could be a factor?? how long did you veg for and what are your strains. Also what lights are you using? cfl's can take longer to switch them over than a hps. also if you have the wrong spectrum of cfl's, this can play a part.

just shooting ideas, good luck.

age, strain and light intensity are factors i believe..