I have spent the past couple seasons in my San Jose area, California garden ripping out some Ferraria crispa that started going crazy after about 3 years in the ground. I belatedly read that they are invasive in Australia. I have also become careful to cut off the seed heads on Homeria, Crocosmia, Allium unifolium, Amaryllis belladonna, Hyacintha hispanica. Freesia laxa and Tulipa clusiana. This seems to keep them from spreading beyond the clumps where they are planted. I had Oxalis purpurea in the ground for over 20 years before the clump started spreading rather vigorously. They are now coming up in an area across 20’ of concrete from the location where they were planted and I am not sure if animals are spreading the bulbs being as I don’t see seeds on them. The CA native Triteleia laxa can also spread rather vigorously from bulbs offsetting, not from seed or animal dispersal. Having this discussion of potentially problematic plants and how people keep them under control is helpful. Janet Hoffmann Campbell, CA _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net https://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> PBS Forum https://…