She’s the largest organism in Europe…

(Yes I did type that carefully).

She’s called Japanese knotweed and there’s one of her across the whole of Europe.

It all comes from one unsolicited sample sent to Kew gardens in 1850. A powerful example of unintended consequences.

2 Comments

  • Gordon Hodgson
    August 13, 2008 - 11:34 am | Permalink

    I had that in Stoke Newington. The stuff grows about a centimetre a day.

  • david ware
    August 14, 2008 - 9:22 pm | Permalink

    Here in the American midsouth, we enjoy another exotic Asian import: kudzu, which will take over every square inch of anything like earth, cover power transmission towers, choke oak trees and darned near run for office. Can’t quite equal the propagation-from-one-sample aspect, though; kudzu was actively
    promoted as a ground cover for many years until people around here discovered how well it crowded out everything else. It could probably give triffids a run for their money!

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