I have found in our dryer climate in the San Jose area of CA that they are not that hard to keep under control. I have had clumps in my yard for over 20 years. I use a combination of digging them out when the clumps get bigger than I want and pulling the flowers as soon as they fade to keep them from reseeding. I also use only drip irrigation on selected areas and plants. I don’t water the bluebells at all and that helps control their spread. I know that is not possible in wetter areas like some of you have, but probably more similar to the Mediterranean climate in their native country. Janet Hoffmann, Campbell _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/…