Thanks, Jane. I was afraid of that. Foothills only. ----- Original Message ----- From: "Jane McGary" <janemcgary@earthlink.net> To: "Pacific Bulb Society" <pbs@lists.ibiblio.org> Sent: Monday, April 12, 2010 11:27 AM Subject: Re: [pbs] Flower count - WAS: What makes erythroniums bloom? The question was >Re: Erythronium tuolumnense: What is the coldest temperature that anyone >has grown this at? Or- what is the highest elevation at which it grows.? >I know that Tuolumne Meadows at 8600 'has gotten to -14 ° F, and I assume >that it might be found there. Having read recent postings, I think I >NEED >this to be in my garden in Illinois. The name of the plant does not refer to Tuolumne Meadows, but to the Tuolumne River, which rises near and runs through the plateau on which the Meadows lie, and to Tuolumne County, where this species has its very narrow range. The erythronium grows lower down, reported at 600-950 meters elevation. At that elevation winter snow cover would not be continuous, but winter temperatures would not drop much below 20 F/minus 12 C. This plant is widely grown in the Pacific Northwest in areas where winter lows in the mid-teens F are common. However, that does not mean it will thrive in Illinois, where it will be subject to summer rainfall and warm night temperatures. Jane McGary _______________________________________________ pbs mailing list pbs@lists.ibiblio.org http://pacificbulbsociety.org/list.php http://pacificbulbsociety.org/pbswiki/