Lycoris behavior
Nathan Lange via pbs (Fri, 16 Oct 2020 17:59:25 PDT)

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>