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During late autumn and the beginning of winter, Japanese knotweed canes die off and the plant becomes dormant. The canes lose their leaves and turn brown in colour. The dead canes often remain standing and may take up to 3 years to decompose. While decomposing, the dead canes will often litter the ground, suppressing competition from native flora.
To help you identify Japanese knotweed click on the video above. You can also scroll further down this page for more identification hints and tips.
Does your property have Japanese knotweed? If you suspect it does, you contact us online using the button below or call us on freephone 0808 231 9218.
When trying to identify Japanese Knotweed in winter, look out for the following:
The collection of images below will help with the identification of Japanese Knotweed in winter.
For additional images, visit our Google image gallery.
For more information about how to identify Japanese Knotweed, click on the links below.
Learn more about how to identify Japanese knotweed in the spring months.Identify Japanese knotweed in spring
Click to view a short video with tips and advice on how to identify Japanese knotweed in summer.Identify Japanese knotweed in summer
View our short video to learn what to look out for when trying to identify a Japanese knotweed issue in autumn.Identify Japanese knotweed in autumn
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.
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.Upload photos
If you are unsure if you have a Japanese knotweed issue, it is always best to consult a specialist.
Contact our Wise Knotweed Solutions team on freephone: 0808 231 9218 or click to find your local branch.
Alternatively, you can book a Japanese knotweed survey online using the button below.
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