Jane, I agree with your opinion that it is invasive if you don't want it to grow it. How much degree you can change the local ecosystem to return back to original pure-ecosystem. I'm wondering it is really needed to return back to a perfect original ecosystem? A certain compromise can be acceptable? This is a micro-climate area. Another section of city is sunny and warmer which reflects different vegetation. Global-warming is changing or reforming ecosystem. Some scientists say that birds are moving toward cooler area, north. I was pointed as a chair of Rotary Club's Wildflower (or Native Plants) Program for the 61 acre hill top property in the heart of S.F. city in Dec. 2016. It is covered by many invasive (?) eucalyptus trees, ivies, Himalayan blackberries and many south African native plants. Eucalyptus was welcome here in California over 100 year before as a quick growing practical windbreak and an exotic ornamental plant but now they are treated as an enemy to inflame wildfires. My favorite nursery in San Diego did not sell Eucalyptus plants anymore. The 61 acre open space reserve has many lime color ivy looking vines with yellow flowers (I do not know the name). I thought they were beautiful and they can be easily pulled out, not like blackberries and ivies. An independent volunteer's group is working to remove non-native plants for years. Their rule is so strict that 100% of not-native plants have to be removed. From my plant lover's point of view, they do not have any affection toward plants. *Makiko Goto-Widerman* Makiko Floral Design Garden Club 501 c 3 One Market Spear Tower 36F San Francisco, CA 94105 (415) 293-8132 MFDgardenclub@gmail.com *http://www.mfdgardenclub.us/ <http://www.mfdgardenclub.us/>* On Thu, Feb 15, 2018 at 5:03 AM, Jane Sargent <jane@deskhenge.com> wrote: > It´s only invasive if you don´t want it to grow there. I wish my Crocosmia > "Lucifer" were more invasive. Here in my Massachusetts hill-country garden, > it is very well-behaved. In my south Mexican garden, however, darned near > everything is invasive, including the bananas that tried to grow in the > front walk, and our primary tool is a machete. > > I´ll never forget the year the U.S.Bureau of Land Management tried to > refuse our taking a potted banana plant to the high Nevada desert at the > Burning Man Festival, for fear that the seeds would get loose and produce > an invasive banana forest. My daughter tried to explain that if seeds could > grow there, we would be staring at an endless marijuana forest. > > Jane > > > _______________________________________________ > pbs mailing list > pbs@lists.pacificbulbsociety.net > http://lists.pacificbulbsociety.net/cgi-bin/… > _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/…