Female/male? When do I know?

When does the sex of the plant appear? During Veg??

Usually after the first week of flowering, assuming a 4 week veg. There are great pics online if you search here, or even google. There is a way to use a microscope, but I don't go all that high tech. Just remember to get the males/hermes out if you got any sacs form between the stalk and branches. I assume you don't know the strain?

You can't use a microscope to identity the sex of your plant. There are a few ways to do this before flowering.
-Check for pre-flowers: Your plants should show early signs of sex at about 3-4 weeks.
-Cover one of the branches with a black paper bag or something similar on a 12/12 cycle separate to the whole plant.
- Put the entire plant into flowering until you can see the sex and then go back to veg (2 week recovery time)

Ok.. yeah that makes sense.. I would really like to know what I'm workin with before I go for gusto.. Thanks for the info..

On the FAQ part of this site, they claim there is a way. Im too fucked up to look for it, but I know I have read it. Preflowers are correct, thats what you are looking for. I personally have never done the bag method, but I heard it works good. Just grow em till flowering, and burn the males, unless you want seeds for that strand.

ok.. thanks I appreciate the quick responses!! I think I might try the bag method.. Im pretty sure there all fem,,, but stranger things have happened.. Respect...