Tony Avent
Thu, 15 Feb 2018 11:17:29 PST
Stepping back from our human-centric perspective, native plants have nothing to do with a physical place, but only a place in time.  Hawaii had no native plants when the islands formed from active volcanos (ca. 3.5 mya) ...everything blew in, washed in, or was carried in.  Dawn redwoods formerly covered the Antarctic, and Ginkgos grew wild in North America.  Continents have already begun shifting back toward a second Pangea. A glance at a Paleotemperature map, below, shows that the we are currently 12 degrees C (25 degrees F) higher than normal for Earth since the Precambrian.  Only twice, and for much shorter periods of time during the Devonian and Carboniferous periods was the Earth much cooler.

It's funny that some non-North American native humans have such trouble dealing with change that they have adopted a Camelotian desire for nature to be static and as such, have created a fervor to preserve what their minds have established as a magical date in history for plant populations.

[New Scientist Climate Change History Hot n Cold sept2014]

Tony Avent
Juniper Level Botanic Garden<> and Plant Delights Nursery<>
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From: pbs [] On Behalf Of Makiko Goto-Widerman
Sent: Thursday, February 15, 2018 1:42 PM
To: Pacific Bulb Society <>
Subject: Re: [pbs] Invasive


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.
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<>
* <><>*

On Thu, Feb 15, 2018 at 5:03 AM, Jane Sargent <><> 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 mailing list<>…

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