Interesting observation. What is even more interesting for me is the fact, that Ipheions are in bloom in your garden now. For me they are regularly the last spring bulbs to bloom, end of May or later. This does not simply reflects colder and later spring in my area, as it seems prolonged cold has profound effect on this bulb biology. Lack of direct sunlight may play a role, too. I do not have winter any more. Snowdrops, spring crocuses are gone, early tulips are blooming, fritillaries will bloom soon. Ipheions are far backwards, just starting new leaves production. They will bloom just before going dormant for summer. Jacek, Poland, winter zone 6A Dnia 17-04-2012 o godz. 10:07 Hans Huizing napisał(a): > Here in Holland, Europe we had -25 Celsius for some days and the Ipheon > uniflorum in my garden are in full bloom at the moment. > The leaves are not damaged at all. > > They seem to be in a very good condition. > > Hans Huizing > > > > > Op 17-4-2012 5:33, Jacek Zwoliński schreef: > > This was my idea, as well. > > > > I. uniflorum leaves survived the previous winter without sigificant > damage (minimum -20 C, almost no snow). Yet, this winter was far worse. > I have never seen "winter" crocuses death-frozen, yet. > > > > In cold climate not only minimum temeperature is important. Length of > frost and snow cover have similar importance. Even 1-2 cm of snow may > prevent leaves from dying (if they lie on the ground - this is the case > of Ipheion in winter). > > > > I wonder what are the minimum conditions Ipheion is able to survive. > Gardeners from cold continental locations without guaranteed snow cover > might help. Janis Ruksans (Latvia, colder than Poland) might help. > > > > Alberto, what do you mean by "winter hardy bulbs from Argentina"? Could > you give me some source I could read? Unfortunately, I use English only. > I have Oxalis adenophylla (cold hardy, but prone to rot) and Oxalis > magellanica Flora Pleno/Nelson (probably death-frozen this winter). > > > > Jacek, Poland, winter zone 6A > > > > Dnia 17-04-2012 o godz. 1:08 Alberto Castillo napisał(a): > >> Well, this plant didn't obtain this feature growing in the very mild > >> climate of Uruguay. This and several other bulbs from Argentina seem to > >> have a more southern (cold) origin and prove amazingly hardy. Only "now" > >> they grow in more northern locations where that hardiness is "useless". > >> My previous information on hardiness of Ipheion uniflorum was -24 C > >> without losing foliage (this sprouts during autumn). > >> > >> > >> > >> _______________________________________________ > >> pbs mailing list > >> pbs@lists.ibiblio.org > >> http://pacificbulbsociety.org/list.php > >> http://pacificbulbsociety.org/pbswiki/ > > > > > > _______________________________________________ > > pbs mailing list > > pbs@lists.ibiblio.org > > http://pacificbulbsociety.org/list.php > > http://pacificbulbsociety.org/pbswiki/ > > > > *H. J. Huizing* > > Wapendrager 38 > > 7943 RP Meppel > > Holland // > Tel: (0031) 0522-440717 > hanshuizing@home.nl > > http://www.dehuizings.nl/ > > Get a signature like this. > <http://r1.wisestamp.com/r/landing/…> > Click here. > <http://r1.wisestamp.com/r/landing/…> > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/