Daniel, I'll know better after this bloom season. Last year Malihini gave me the same problem. It hasn't bloomed yet this year. Also Smoky Mountain Autumn although I wonder if I have the correct plant. Ruby Claret was a problem but it looks like it might be pollen fertile this year. Siloam Mama seems to be pod fertile this year. There are a few others but I can't remember off the top of my head. But for all I won't know for sure until the pods mature and I actually get seeds (or not).