Paulownias have been in this country, especially the South for more than
half a century. If they are invasive, parasitic, or whatever they sure are
taking a long time about it. Now take kudzu. Even with its good traits
(and there are several), it very quickly became a bane in this country.
Even worse is the multiflora rose. It has fewer (any?) good traits and
more bad ones than kudzu (at least herbivores will eat and thrive on
kudzu). Both came on fast after introduction and very quickly were
recognized as pests. Autumn Olive is another, recent example of a good
idea gone bad.
Paulownia just doesn't make the grade as far as plant villany goes. From
the standpoint of value per acre, it is probably has one of the best per
acre returns of any legal crop in the country, especially when comparing
tree crops. From what I have observed over the past 20 years though, it is
pretty much a wimp as an invasive plant.
Son of Richard
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