Is ur largest in the ground? if not then just take it indoors to mature when the first frost hits. If it is, you could probably transplant to a large pot and do the same. General idea is take it indoors to mature and you'll have less to worry about.
Either way, it shouldnt pose a major problem

Note: If you can accomodate it, transplanting the whole plant is preferable to cloning two branches. The trauma of cloning may turn it into a male or worse, a hermi.