Re: Invasive Campanulas and Eupatorium coelestinum

Hi-
The Eupatorium coelestinum we planted 5 years ago and started digging out 3 years ago has now been seen - literally - on all four corners of a two-acre lot. And it was originally planted in just one small spot. There should be laws against that plant! At least the C. punctata 'Cherry Bells' stayed in one area and rips out easily.

Wouldn't give the Eupatorium to my worst enemy!

Barb (southeastern PA)


----- Original Message ----- From: <Blee811@aol.com>
To: <perennials@hort.net>
Sent: Saturday, June 04, 2005 10:40 AM
Subject: Re: Invasive Campanulas


In a message dated 6/4/2005 10:25:26 A.M. Eastern Standard Time,
4042N15@nationalhearing.com writes:

Is your Campanula 'Joan Elliot' related to C. punctata 'Cherry Bells'? That
one is campaigning for use of the name "Mile a Minute". We only carried it
one year in our nursery and then got rid of it - so we thought. It's still
popping up a bit. This year we are trying one called C. 'Elizabeth'. I
don't believe it is a punctata, or even a cross including punctata, but it
does have similar flowers. We shall see.


Sounds more like Cherry Bells to me too. It has taken over about half of one
of my daffodil beds, although the daffodils don't seem to mind it. It is
just now starting to bloom--I'd be a lot more tolerant if it were just a little
prettier. As for 'Joan Elliott'--this campanula has never been invasive for
me. In fact, just the opposite--I haven't been able to keep it, and not just
because the groundhogs keep eating it--my groundhogs seem partial to
campanulas, although not Cherry Bells. And it's a pretty blue one, not like the pale
pink of Cherry Bells.

Two other invasives I'm dealing with are a variegated mint and a perennial
some call "perennial ageratum"--Eupatorium coelestinum. The Eupatorium does
look just like a tall blue ageratum. It increases by rhizomes that look very
much like those of the mint. It must increase by seed as well, because here it
has jumped beds across a couple feet of lawn. Of the two, the mint is the
easier one to get rid of. I don't know where the mint came from, it just suddenly
showed up in a bed one day. The Eupatorium was my own mistake.
Bill Lee
Z5a Cincinnati

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