My Lycoris x squamigera have flowered here in Sonoma County, California (USDA zone 9b) each of the last four years. The bulbs are growing in a five gallon, black plastic pot instead of in the ground in order to maximize winter cooling. Not surprisingly, the bulbs on the south side of the pot consistently never flower. This is more likely due to flower bud abortion caused by spring/summer over heating than to lack of winter vernalization. I suspect our winters here might be too warm for successful flowering from bulbs planted in the ground where they would be more insulated from night time vernalizing temperatures during the winter. Nathan At 01:13 PM 10/15/2020, you wrote: Not all species are the same. The genus Lycoris is composed of 2 quite distinct subgenera. The subgenus that includes the spring foliage species most notably L. squamigera, L. chinensis and others produces is annual foliage in spring at the end of winter. They bloom in late summer and early fall months after the foliage has gone dormant. These species and their hybrids are generally quite cold hardy through Zone 5 and generally grow and bloom best no warmer than Zone 7/8. At 09:05 AM 10/15/2020, you wrote: This brings up another puzzling lycoris issue. Everything I've ever read has repeated that Lycoris x squamigera flowers only after a very cold, long winter, which is why it flowers reliably in cold climates, but not in warmer regions. _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net>