In outdoor cultivation of marijuana, where there could be several pollen sources, there is a greater likelihood of obtaining seeds that are the consequence of both self-fertilization and cross-fertilization. Please be aware that you will need to confirm your submission. Despite this, experts still advise customers against requesting expedited delivery or a shipping method that requires a signature.  Source: <a href="http://www.chambermv.org/list/member/ayla-prosacco-12767" rel="nofollow">http://www.chambermv.org/list/member/ayla-prosacco-12767</a>