PO Box 544 Distribution of Japanese Knotweed reports. If possible please contact us by email at enquiries@environment-agency.gov.uk. The invasive plant arrived in the south east of England, Kew Gardens, in 1850, and the first nursery to sell it to the general public was in Kingston. Before the insects were introduced, it cost the UK over £150m a year to control and clear. The stems are glaucous and hollow with nodes / joints, similar to bamboo shoots. With 15 years experience in the horticulture sector we endeavour to provide our clients with a professional and effective service. In Britain, banks refuse to approve mortgages on property where knotweed is present. Based near London, we are in the ideal spot to help remove dangerous Knotweed in Surrey, as well as areas across Kent. The plant arrived from Japan to the U.K. and then to North America in the 19th century as a landscaping ornamental. Japanese knotweed has a number of physical traits which can be used to identify it such as bamboo-like canes and broad green shield-shaped leaves during the spring and summer. Low cost Japanese Knotweed removal by UK specialists working in Midlands Birmingham Cardiff Telford Warsall Shrewsbury Ironbridge Worcester. Very small fragments of stem/rhizome can give rise to new plants. It has been licensed by the UK Government for the biological control of Japanese knotweed in England; this was the first time that biological control of a weed was sanctioned in the European Union.. Japanese knotweed can also be burnt as a method of eradication – if the waste belongs to a business rather than a private individual, the EA and local Environmental Health Officer must be notified at least a week in advance (.GOV.UK, 2017). These may seem like big investments but it’s better than simply ignoring your problem. Without professional help, it can be incredibly challenging to deal with. We are the preferred Japanese Knotweed removal specialists, possessing an unrivalled depth of knowledge and commercial experience to help companies, councils, and homeowners alike across South East England. In order to manually remove the rhizomes from beneath 4 square yards of the ground you would have to dig up 20 square yards. Even in cases where no physical damage has been caused the Courts have found that neighbours can be liable for loss of amenity value due to the Japanese knotweed, or the presence of the plant’s roots under their property. Soon the plant was being distributed to garden nurseries around the country and then shared in cuttings by enthusiastic gardeners. New links to the Invasive non-native specialists association, Property Care Association and RPS 178: treatment and disposal of invasive non-native plants. Native to Japan, the plant is considered an invasive species. Monday to Friday, 8am to 6pm. Japanese Knotweed survey. Where is Japanese knotweed originally from? Don’t include personal or financial information like your National Insurance number or credit card details. Philip von Siebold brought Japanese knotweed to the UK in 1850, unaware of the impact that it would go on to have on the environment. "Once we inject into it, … How common is Japanese knotweed in the UK? In addition to being intentionally spread by people, the plant also began to spread by its own means, populating river banks and finding new routes to the rest of the country along roads and newly built railway lines. The plant was originally discovered by Dutch naturalist Maarten Houttuyn in the 18th-Century, he named it Reynoutria japonica, a name which it still goes by today. In winter the plant dies back to ground level but by early summer the bamboo-like stems emerge from rhizomes deep underground to shoot to over 2.1m (7ft), suppressing all other plant growth. 633045. 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