Hi Bob, I don't believe callas are winter hardy here. I will try to overwinter the two that were given to me and keep them indoors. Thank you so much for your kind offer regarding the Pinellia tripartita; it sounds beautiful. I am afraid I will need to pass as the climate here is very dry and the soil dries out quickly. I'm gradually moving to natives that can tolerate difficult conditions and don't need supplemental water. 2018 was particularly bad, as was the period from 2011 - 2013: https://www.drought.gov/drought/states/colorado/ Thank you again. Carol; Colorado 5b-6a _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/…