Re:Invasive-was Background plantings for Shade


Robert Campbell <rbcamp@neptune.on.ca> wrote:

> Invasive really is in the eye of the beholder, and in how big a garden you
> have.  I'm waiting (probably only until spring) for my single plume poppy
> to turn into a dozen or so to fill a large hole in my garden. 

I agree with you about the eye of the beholder.  However, I also 
think it is important to distinguish between "aggressive" and 
"invasive".  To me, an invasive plant is agressive but is also 
difficult to eradicate.  Some species of mint and most comfrey 
would fall into that category, for instance.  Plume poppy is not 
difficult to eradicate in zone 6 for me.  It is extremely 
aggressive in rich, moist, well-drained soil.   However, it is 
listed as a noxious weed difficult to eradicate in Hawaii.  I 
think seasonality and growing conditions also contribute 
substantially to a plant's invasiveness.   Except for bindweed; 
it's invasive everywhere.  :)

Jaime
zone 5 - 6a  NW New Jersey
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