@Prince Philip that video is of an Isa plant as you know but it is not in "Situ" It is in fact in Hawaii, it is on the Hamakua Coast close to where my mom lives. This farmer planted a bunch of Hawaiian kava and the Isa that came from
papua new guinea
That video was actually posted by Tyler at the Root of happiness.
This farmer planted a bunch of Hawaiian kava and Isa, he sold all the Hawaiian kava but never replanted it, now he only has Isa growing and he let that farm go, it is all over grown and not doing good. He can not sell the Isa to anyone over here, nobody wants it. The field is going to waste.
Also I wanted to comment on that article, it said this---"
many vendors in Hawaii are selling Isa Kava. At the symposium, one store, in Portland, Oregon, was revealed as selling Isa. One of Hawaii’s most widely grown plants."
This is not true, at least the part about Isa being one of Hawaii's most widely grown kava plants, I know for a fact it is not, why would people over here want to grow a kava plant that is hard to sell when they can grow the Hawaiian kava and it will sell a lot faster and it is better for you.
There is also a rumor that Isa escaped when it was brought over here to Hawaii, this is also not true, Kava has to be intentionally planted and cultivated, it did not escape. At that time, when I got my cuttings from the Isa and Iwi plants we did not fully know the problems with Tudei kava, we were just interested in growing kava of many varieties. Now we know the effects of Tudei kava and many of us growers have personally tried Isa and do not like it. We like the Hawaiian kava. I hope this helps to clear up some misconceptions. Aloha.
Chris
https://www.google.com/search?biw=1413&bih=661&q=papua+new+guinea&spell=1&sa=X&psj=1&ei=Kh-TVLTYGIaxogT_uoHAAg&ved=0CBoQvwUoAA