Papilio is variable.It stays evergreen more often than not,in the Tampa bay area.If it gets too hot it will go dormant.If the leaves get burned off from cold, it will often go dormant.If it gets too much water in either of these circumstances,the bulb will rot.Papilio grows best in cooler months. Its natural dormancy is in the heat of summer.It may not lose its leaves,but it is still dormant.I have found that Vittatum is hard to kill. Del On Wednesday, February 24, 2016 12:22 AM, Eugene Zielinski <eez55@earthlink.net> wrote: I'm glad Jim Waddick mentioned Hippeastrum x johnsonii as one of the hardiest garden amaryllises. Scott Ogden (Garden Bulbs for the South) lists this as an old (ca. 1810) hybrid of H reginae and H. vittatum. Thad Howard (Bulbs for Warm Climates) said he was "amazed to find H. vittatum growing in sandy woodlands (in Brazil) at a depth of 6-8 inches." I used to live in Augusta, Georgia, and H. x johnsonii grew very well there. The large Hippeastrum hybrids also did well. This doesn't surprise me since the ground rarely froze during the winter, and when it did, I doubt that frost penetrated deeper than an inch. Augusta receives rain year round, so I don't think H. x johnsonii and other Hippeastrum hybrids require a dry dormancy -- a dry dormancy may actually be harmful. I've seen H. x johnsonii bulbs and seed offered on Ebay; the bulbs seemed overpriced to me. In zone 7 Oregon, it would be an interesting experiment to plant some inexpensive Hippeastrum hybrids deeply (say, in a 10 inch hole) and see how they survive. Eugene Zielinski Prescott Valley, AZ USA > [Original Message] > From: The Silent Seed <tylus.seklos@gmail.com> > To: Pacific Bulb Society <pbs@lists.ibiblio.org> > Date: 2/23/2016 8:01:01 PM > Subject: Re: [pbs] Hippeastrum cold hardiness > > So how deep are you guys planting them in the colder zones (5-6?) > > > On Tue, Feb 23, 2016 at 9:54 PM, Travis O <enoster@hotmail.com> wrote: > > > Thank you, Lee, and everyone else. I'm technically in USDA zone 7b, we > > experience the occasional dip to -12c, often without snow cover, and it is > > always wet in Winter. Deciduous species would probably fare better, I > > assume. > > > > I'd love to try some of the hardy species should anyone have seed/offsets > > to trade. > > > > Travis Owen > > Rogue River, OR > > > > http://www.amateuranthecologist.com/ > > http://www.pacificbulbsociety.org/ > > > > _______________________________________________ _______________________________________________ pbs mailing list pbs@lists.ibiblio.org http://pacificbulbsociety.org/list.php http://pacificbulbsociety.org/pbswiki/