Re: Lamium thugs

I've never grown Lysimachia clethroides because I've heard too many horror
stories.  I have grown Lysimachia puunctata, often described as vigorous,
without a problem, though. It did multiply well in my garden, but stuck
close to where it was planted - in shade.  I've heard it is more rampant in
sun. As to systematic pulling, with perseverence it can kill off any plant,
given time and vigilence, but you only mention pulling small plants - did
you also yank the originals?  I have a similar problem with Grapeleaf
Anemone, A. tomentosa, I dug it out of one bed last fall, but remnants have
returned.  I'm getting them out now and I suspect a few more will come up
this year and next, but then that should be the end of it.

We have had a single plant of Thermopsis villosa (syn T. caroliniana) for
about 5 years with no sign of spread yet here in Zone 5.  We moved it from a
border a few years ago and planted it at the edge of our Prairie garden and
it seems quite happy.  I suppose if it did spread there, we wouldn't mind.

Kitty
neIN Z5
----- Original Message ----- 
From: "Sophie Rapaport" <sophieruth@charter.net>
To: <perennials@hort.net>
Sent: Thursday, June 02, 2005 3:09 PM
Subject: RE: Lamium thugs


> Gooseneck Loosestrife (Lysimachia clethroides) is wrecking havoc in my
> perennial border. It started with a "gift" of 3 small plants 2 years ago
and
> this year I must have pulled 50 young plants and I am sure I did not get
> them all. Will systematic pulling eventually get rid of them ? I knew the
> plant is invasive but my border had empty spots and I thought .... I am
not
> sure what I thought. My other problem is thermopsis caroliniana (False
> lupine). I had this early blooming perennial for several years (I actually
> moved it from my old house 5 years ago) and it was always behaving well.
All
> of the sudden last year it appeared everywhere in the border and as I
found
> out it is spreading by the underground roots. Unlike the gooseneck it is
not
> listed anywhere as an invasive plant, so I just want to caution other
> gardeners that this might happen -while I am pulling. Sophie
>
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