I never had that assumption although it is true for the more fleshy seeds like crinums. I tend to have a less formal filing system which I refer to as a geological filing system and I found packets of seeds I had mislaid about a year and a half earlier (according to the stratigraphy) and they appeared to sprout just fine; although I can't say I documented it as well as you did. On Mon, May 13, 2024 at 10:57 AM Patrick Hudnall via pbs < pbs@lists.pacificbulbsociety.net> wrote: > It has long been said that Hippeastrum seeds have a rather short shelf > life. Not so. > > In April of 2022 I gathered a large seed pod from a randomly selected > hybrid. It contained 45 quality seeds which I cleaned of chaff. I divided > the seed into 3 groups. Using the "Float" method I had 14 germinate of 15 > sewn. I placed the remaining 30 seeds in a ziplock bag in my refrigerator > at 35ºF (1.6ºC). In May of 2023 I sewed 15 of the remaining, refrigerated > seeds, again using the float method having 14 germinate. In May of this > year, 2024, I removed the remaining 15 from the refrigerator and sewed > them, with all 15 germinating. I just planted those and will grow > to maturity. > > > > Well, refrigeration seems to preserve Hippeastrum seed quality for at least > 25 months. > > > > Next, I will test seeds stored at ~ warm room temperature, 23ºC. > > > > Patrick Hudnall > > Houston, Texas, USA > > Zone 9 > _______________________________________________ > pbs mailing list > pbs@lists.pacificbulbsociety.net > https://lists.pacificbulbsociety.net/cgi-bin/… > Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> > PBS Forum latest: > https://pacificbulbsociety.org/pbsforum/index.php/… > _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net https://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> PBS Forum https://…