The Japanese knotweed root, often referred to as the rhizome, is the underground part of the weed. Click on the video above for hints and tips to help you identify the root. You can also look out for the following:

  • The root looks "knotty" with a brown bark.
  • Underneath the bark, the knots are an orange-yellow colour.
  • If the rhizome is fresh you will be able to snap it.
  • Small white roots or buds emerging from the knots (these can grow into new plants if cut up)

For further information on identifying Japanese Knotweed at different times of the year, visit our Japanese Knotweed identification web page.

If you have identified roots like the ones described, and want to speak to a Japanese knotweed professional urgently, call our expert team today on 0808 231 9218.

If you would prefer to get in contact online, simply click the button below.

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Additional info for identifying Japanese Knotweed

Watch the videos below to help you identify Japanese knotweed throughout the year:

Not sure if you have knotweed?

If you have a suspicious looking plant growing on or near your property and want to know whether it is knotweed, upload your photos to us directly and we will let you know whether you have knotweed or not.

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Free knotweed assesment

Have you seen a suspicious plant and want to know if it is the dreaded Japanese knotweed? Simply click the button below to upload your photos and we will get back to you with an answer.

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Japanese knotweed treatment

If you have identified Japanese knotweed on your property, getting it treated as early as possible is highly recommended. The earlier knotweed is treated the less chance it has to grow and spread across your property and beyond.

Japanese knotweed treatment

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