Well its got balls already those lil round circles are balls that means males sometimes realy fast others it take timeME PERSONALY I LIKE TO KEEP THEM..
if you want the pollen you don't have to save the whole tree. just take a few clones and stick them in a area with no wind. once they start opening up just cut the balls off into a zip lock.
male bro,next time buy fem seeds instead of grabin first seed you see at local dealer's place,you can still use the leaves i believe or something,good luck next time