Do a Google search under 'Japanese knotweed' or 'Polygonum
cuspidatum'. As this is one of the most pernicious of invasive weeds
and very widespread in its occurrence, you'll find dozens of sites
remarking on it and offering means of control. Eradication is
difficult and requires repeated efforts. Do not expect this to be
easily resolved in a single season. And if it is on neighboring
properties, it's going to have to be a joint effort.
Hi Caterpillar, Gardengal is right. It's a terribly invasive
weed ... unless you like it. Then it's a fast-growing plant that
requires no care whatsoever. It's kind of pretty too and can be used
to screen off things that aren't so pretty. Another good feature is
that it's good to eat. The young, springtime shoots are not as sour
as rhubarb but not unlike rhubarb either, except they're hollow. Bon
-Paw, Doomer in Chief
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