>I may be totally oblivious, but not one of my tulips every produces viable seed and spreads that way. My climate is very severe in summer and winter. I have tried untold hundreds of seed of T. sprengeri without a single sprout showing up in a variety of seed trials. Oh, Kansas City isn’t all that bad. The eastern edge of the Rockies was colder than any place on the planet, except the South Pole, last November. A drop from +17C to –25C in less than forty-eight hours. Casper, Wyoming, was about –35C at the time. And then it happened again in December. (I’m not complaining. I stayed inside.) I bet it’s the smoke from all the barbecue places in K.C. that prevents tulips from setting seed. Bob Nold Denver, Colorado, USA _______________________________________________ pbs mailing list pbs@lists.ibiblio.org http://pacificbulbsociety.org/list.php http://pacificbulbsociety.org/pbswiki/