take clones b4 ur plants start to flower, easiest way 2 tell u is slice a branch off at an angle with a sharp clean stanley knife blade, dip it in rooting hormone and put it in a damp 1 inch rockwool cube or soil will work, dont let it dry out and keep under a not to intense or hot light 4 18 or 24 hours a day, should c roots in just short of 2 weeks.