I think it probably does depend on species. But I also think the seeds also do have relatively limited viability compared to something like Calochortus or Lilium. I had much lower germination rates with Silverhill Gladiolus seed (multiple species) that I stored for a year (refrigerated, dry, in plastic bags) than I did with seed I sowed shortly after receiving it. On Mon, Jan 17, 2022 at 6:49 PM Garak via pbs < pbs@lists.pacificbulbsociety.net> wrote: > Hi Jan, > > I think one year is overly careful. I've easily germinated Gladiolus > tristis from the EU exchange that was marked as two years old, and some > from commercial sources that seemed a lot older. Of course it may depend > on the species a lot. > > Martin > > > -- > Martin (pronoun: he) > ---------------------------------------------- > Southern Germany > Likely zone 7a > > _______________________________________________ > pbs mailing list > pbs@lists.pacificbulbsociety.net > http://lists.pacificbulbsociety.net/cgi-bin/… > Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> > _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net>