If there is a flower, there will be a seed afterwards. Of course they should be pollinated by some sort of insect, although I was not so sure about this one. I never expected seeds on an amaryllis, but here they are. I really should have planted them. I did see a triffid in the living room and I have it under strong suspicion,which was one of the reasons I did not plant them. Too many triffids can be a problem. They tend to follow you with their heads.