I am sure in this case it was stress that caused the seeds.
However, pollination can also occur without any mistakes, stress, or strain problems. I was reading an article a few years back that the pollen count in New York at that time was 70% marijuana! Pollen can travel many miles, so it is possible to get a seed here and there. Where I live there are most likely a lot of "gorilla grows" (outdoor in the woods and fields). Usually in the fall I will get a seed here and there. I presume it is from those outdoor grows.
GrowGoddess Reviewed by GrowGoddess on . Double Harvest With a Few Seeds? Question: As a first timer I Had a great harvest this year. So good I allowed the 4 "Widow" plants to extend into a "Double Harvest". So here's the deal..... Of course they were all "feminized" female cuz everything that was crushed & vaped contained no seeds up until a week or so prior where I crushed up some flower & to my amazement noticed a seed in the mix. Thought nothing about it until today where again, crushed up some more from the "2nd batch" (Double Harvest) & noticed 2 more Rating: 5