On 4/30/2022 12:18 AM, Marc Rosenblum via pbs wrote: > On 4/29/2022 8:25 PM, Jane McGary via pbs wrote: >> I don't know where this hardiness estimate came from, but I doubt it >> extremely. > > Jane, > > In clarification: > > There are many Alstroemeria species from Peru, Ecuador, and Chile that > need Zone10 or Zone 9 > > Chileflora lists several species hardy to Zone 8 or Zone 7. Most > garden hybrids are hardy to zone 7a. Ligtu hybrids may take 6b with > minimal protection. > > Sunset National Garden Book lists Alstroemeria hybridsas hardy in > sunset zones: > > 5-9, 14-24, 26,28, 31,and the warmer parts of zones 32 &34. > > That would include Virginia , Maryland, Delaware, Southern New > Jersey, and Southern Pennsylvania. The winter temperature range for > zone 31 is 0-7F and for 32 0-10F. which describes USDA zone 7. Below > 0F would put one in zone 6 i.e. Southerm Michigan. > > Hortus III and The RHS Garden Plant Index do not mention Sunset zones > but agree with the 0F threshold. > > >>> In further clarification: My satement wes that Alstromerias are beyond their hardiness threshold on Southeastern Michigan. That is true even if they won't tolerate 0F either! Certainly many Alstroemerias won't tolerate 0F; but, probably some will. MarcR zone 8b >> _______________________________________________ >> 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> _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net>