Posted: 03/11/2014 at 14:00
RonS, I googled it and found a site for collecting seeds from peace lilies. I'm not techy enough to cut and paste or whatever the url(?) here.
They said to wait until seed pod is brown or black, carefully cut it off and harvest the seeds. I understood that they could be planted when you want, though I would wait until the days are longer. But since they are tropical I would think they come from a country where there is not much difference in day length winter/summer.