We materialize Japanese Knotweed.

Japanese Knotweed board in a Japanese Knotweed field

Our Products

Sample kit Sample kit
Sample kit
€35.00

About Why Knot

At Foundation Why Knot, we take a fresh approach to invasive species. Instead of seeing them as……

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Japanese Knotweed beneath a concrete bridge with a metal railing, under a cloudy sky.

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