Six feet is great, I do not think I've seen them much higher than that, but I've read they can reach 9 feet. The main caveat is they are very susceptible to root rot. I lost my planting because the area I put them in stayed to wet in winter. Jo Canning _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/…