Quote Originally Posted by sToNeDpEnGuIn420
how would you cross more then 1 would it be like take 2 males and polenate the one female?
No man you get for instance a northern lights x haze, and then cross that with something else. so it would be nl5/haze x blueberry.

All of those strains are already bred from several different strains anyway. Like haze is a bunch of different sativas. Unless your have seeds from some 3rd world country bag weed, chances are your seeds have genetics from many different "landrace" plants.