Re: Re:Invasive-was Background plantings for Shade

> Whatever you do, DON'T plant unvariegated bishops weed (aegepodium, or
> something like that).  It has very pretty foliage, and queen-anne's-lace
> flowers, but it is incredibly, aggressively invasive, and does not
> respond to Roundup.  It strangles everything in its wake.  Its roots are
> huge and strong (like poison ivy in that respect, but they branch even
> more).   It is a plant lover's horror movie, with no admission charge.
> I don't know if the variegated stuff is as bad -- it certainly is
> pretty.
> 
> If anyone has any suggestions about how to get rid of it, I'd be
> delighted.  I have been trying desperately to eradicate it from my
> garden for years (prior owners planted it).  It resprouts from the
> tiniest of root bits, as well as from seeds (so you can't confine it to
> the location where you plant it).  We have had much better luck getting
> rid of poison ivy and mint, if that gives you a clue about the troubles
> we face.

I too have had problems with Bishop's gout.  When I first moved into the
house two years ago, the entire back yard was lined on all sides with
it.  We also had small plantings in the front yard.  

I tried Roundup, but like you said, they don't respond.  The leaves
usually shrivel up, but it comes right back from the base again.

The only successful method that I've had is with a turning fork.  I
dug out all of the plants that I could find, then turned the soil
where they were and removed any pieces of the roots that might still
be lurking.  I still find some coming up every once in a while, but
I've almost totally removed it.

> Are there other plants that are just AWFUL for this zone?  I LOVE plume
> poppy -- that is not my idea of a nuisance.

I've had some problems with Coreopsis, but just because of their
aggressive reseeding.  Removing the plants is easy, but they grow
so quickly that many other desireables get choked out.

Yet another trouble-maker is Ruellia humilis, or wild petunias.  They're
really beautiful (so I don't mind nearly as much), but they reseed
everywhere!

For a while I thought that Ajuga and Feverfew would create problems,
but they seem to have become less aggressive recently.

Chris
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