When do the first signs of sex appear? I am assuming it is not until you switch to 12/12 and the flowering stage. I also understand that cloning should not be done during the flowering stage, but only during veg. So, this seems to be a catch 22, unless I clone all plants, label them and then when I sex the parents, throw out all clones coming from males. Also, how do I establish a "mother plant" to continue to cut clones if I have to begin to flower her to determine gender...unless I use a female clone as the "mother" is guess....Hope this makes sense.