Self-fertility can vary considerably across varieties or species and also different clones of the same species. The same individual plant producing seed in some years and not in others could be the result of an unobserved pollinator. It could also be related to the condition of the stigma based on weather or timing (phase of receptivity), which can easily be different year-to-year. Or some combination of such factors. Some bulbs I've grown and flowered for many years have only set seed once or twice, with or without hand-pollination. I've seen the same "phenomenon" in Anthurium as well. Some of the variables here are difficult to understand in detail or across multiple years. Dylan Hannon Los Angeles *"The greatest service which can be rendered any country is to add an useful plant to its culture…" --**Thomas Jefferson* _______________________________________________ pbs mailing list pbs@lists.ibiblio.org http://pacificbulbsociety.org/list.php http://pacificbulbsociety.org/pbswiki/