My perfoliata finally has buds. Does this variety produce fruit and/or pollen and can I use pollen from another decaloba to fertilize it? I'm hoping that my biflora or Sunburst will bloom at the same time. I'm not sure what other decalobas I have. Can another variety be used for pollination? I know next to nothing about crossing passies and usually just wing it using whatever happens to be blooming at the same time.