I'm wondering about what sex my 3 plants are ,they all look the same ,maybe I should send a pic of one close up .. Will they start flowering if I stay on 24 hr lights ,under florescents? I pinched one off and am traing it to grow horizontally with great sucess,its real bushy .I keep looking for a hint of flowering but not yet .I'm going to let them grow another few eeks before going 12 12 .I'm grownig northern widow ,a cross I bought on line. Neil
they will show preflowers around week 4 of veg (about week 6-8) however, I never was able to see preflowers on my bagseed, i think it was because i did 24/0 light cycle. when i went to 18/6 on my next batch it was using feminized seeds, and they showed very obvious preflowers at week 6-7. so to answer your question, yes, they CAN show sex around that time, however, in my exp. they dont always do so. best way is to take some clones and put them under 12/12. or you could just switch to 12/12 and wait about 4-6 days and they'll all show sex, and you can kill off the males, if thats what you want. good luck