Leycesteria formosa (Himalayan honeysuckle) Japanese knotweed, also known as ‘Fallopia Japonica‘, is the most common form of knotweed found in the UK. The impact of COVID-19 on our teams means you may experience some delays in responses as most of our staff will be working from home. Japanese knotweed crown and rhizome may survive burning so you must dispose of any remaining material following the guidance on how to bury or dispose of it off-site. Failing to spot Japanese Knotweed in the garden of a home you plan to buy could result in you wasting time and money only for your lender to decline your mortgage. A mortgage lender may also not be willing to lend if the buildings insurance policy won’t cover knotweed. The plant is one of many species of plants that have been discovered to be growing on the side of volcanoes. Any business wanting to burn Japanese Knotweed waste must register for a waste exemption (if they can meet the conditions) and notify their local EPR waste team at least a week before they intend to carry out the burning. Whilst most buildings insurers do not ask about Japanese Knotweed, they may not cover any treatment so check your buildings insurance policy carefully to see if it is covered. Wildlife and Countryside Act 1981, c.69, Part I, Section 14 : - “if any person plants or otherwise causes to grow in the wild any plant which is included in Part … Isolate the Japanese knotweed by means of ‘7m rhizome spread fencing’ prior to the commencement of development works to prevent any disturbance of the plant by … It usually takes 3 years to treat Japanese knotweed until the underground rhizomes become dormant. You can bury Japanese knotweed at the site it’s produced as long as you: Where it’s not possible to bury the plant 5 metres deep, you should wrap a root barrier membrane layer completely around the plant remains and bury them at a depth of at least 2 metres. If you are unsure if you have a Japanese knotweed issue, it is always best to consult a specialist. It is very resilient and regrows vigorously after being cut down. Exposed: The Japanese Knotweed Heatmap is an interactive online heatmap of Japanese knotweed sightings across the UK. You’ll know Japanese Knotweed by its spade-shaped leaves, which can grow up to five and a half inches in length. Distribution of Japanese Knotweed reports. The TA6 form's Japanese knotweed question was revised in February 2020. Check the leaves. Speak to a Japanese Knotweed expert. Chemicals: using safely and effectively Chartered Accountant is Graham George Ball, Marketing Director is Benjamin Robert Lindley, Director is Jacqueline Wreford. You can contact them for guidance, but it is the responsibility of the landowner to deal with Japanese knotweed. Five years ago, the Environment Agency commissioned a new app to track Japanese knotweed, using the crowd-sourcing principle. Although it rarely sets seed in this country, Japanese knotweed can sprout from very small sections of rhizomes. We are unable to accept plant samples. You can contact the Environment Agency for help if you: National Customer Contact Centre A request was made under the Environmental Information Regulations 2004 for information regarding the locations of Japanese Knotweed on Highways England land. Japanese knotweed (Fallopia japonica) is considered to be one of the most invasive exotic species. Knotweed Plan Proposal. How Japanese knotweed grows and spreads. Japanese knotweed is originally from Japan and is also native to China and Korea. Many of these companies belong to one of these trade bodies: Invasive Non-Native Specialists Association. Houttuynia cordata New legislation now covers its control – see below. You will not normally be allowed to bury waste on land unless it’s at a landfill site that has a suitable permit. If you have any questions or concerns regarding Japanese knotweed, check out our frequently asked questions or call us for free on 0800 1337 444. Japanese knotweed is a fast-growing and strong clump-forming perennial, with tall, dense annual stems. Rhubarb is known to go well with mackerel so I was thinking knotweed might be a good accompaniment to mackerel too. PROPERTY CLINIC: Japanese Knotweed has been found in our neighbour's hedge, does it mean I won't be able to sell my home? You can only reuse knotweed-contaminated soils after treatment, on the site where they were produced. RHS Garden Hyde Hall Spring and Orchid Show, Free entry to RHS members at selected The hot spots for the invasive and devastating Japanese knotweed plant across Devon have been revealed. Your conveyancer or solicitor will be able to provide full legal advice, however, here is a summary: Contact The Royal Institute of Chartered Surveyors for further information. the RHS today and get 12 months for the price of 9. RHS members can get exclusive individual advice from the RHS Gardening Advice team. More about Exposed, the knotweed heatmap Invasive Non-native Specialists Association (INNSA) maintains a membership list of contractors and consultants phone 0800 1300 485. Response to request for locations of Japanese Knotweed on Highways England land. TPO would like to bring to your attention issues surrounding a species of plant known as Japanese knotweed. How to Identify Japanese Knotweed. You should be able to get contractors’ details from your local authority. What is Japanese knotweed? We use this information to make the website work as well as possible and improve government services. For the purposes of this document, this plant will be This may be important if planning to sell your property in the near future or if a neighbour is threatening litigation from the spread of knotweed from your property. It is highly invasive and destructive to property. Don’t include personal or financial information like your National Insurance number or credit card details. Do. If possible please contact us by email at enquiries@environment-agency.gov.uk. It is a list of products currently available to the home gardener. Clarified that the Environment Agency are not responsible for dealing with Japanese Knotweed. There is a new way to ascertain if the area in which you are purchasing is potentially infected by Japanese Knotweed by using a new ‘Heatmap’, which can be found by clicking here. Monday to Friday, 8am to 6pm. Before burying non-native invasive plant waste on your land, check with the Environment Agency to see if this is allowed. Under the provisions made within Schedule 9 of the Wildlife and Countryside Act 1981, it is an offence to cause Japanese knotweed to grow in the wild. SBM Job done Tough Tree Stump Killer (soluble sachet only), Doff Maxi Strength Glyphosate Weedkiller or Westland Resolva Pro Xtra Tough Concentrate), Glyphosate-treated knotweed will often produce small-leaved, bushy regrowth 50-90cm (20in-3ft) in height the following spring. It is easily … Agents - Check for properties affected by the UK’s most aggressive, destructive and invasive plant Japanese knotweed . Identification is important. How can I check for Japanese Knotweed? Japanese knotweed, or Asian knotweed as it is sometimes also known, is a large, herbaceous perennial plant of the knotweed and buckwheat family Polygonaceae. A Japanese knotweed site survey and remediation options appraisal is essential in determining accurate development costs for a site. Japanese knotweed is a highly invasive plant and one that can cause damage to property in its path. Japanese Knotweed Distribution Heatmap Where has Knotweed been found in the UK? The presence of Japanese knotweed on a property does not need to be a deal breaker, as it can be successfully removed using the right techniques. 4) Japanese knotweed does not have to scupper your deal. Speak to a Japanese Knotweed expert. Fly tipping should be reported to The Environment Agency, free-phone number 0800 807060. Why you need to check for Japanese knotweed: How to spot, how to beat it, and what mortgage lenders have to say. Japanese knotweed is semi-shade tolerant but grows best in full sun. During spring, reddish/purple shoots appear from the ground and fat, asparagus-like ‘spears’ rapidly lengthen from bright pink ‘crown’ buds. Contact Japanese Knotweed Ltd so we can manage, control and remove the problem for you. Eradication requires determination as it is very hard to remove by hand or eradicate with chemicals. Its roots and rhizomes can grow to a depth of 2m. Thoroughly check the garden In its native land, Japanese knotweed can reproduce naturally and also benefits from a prodigious underground system of rhizomes. Japanese Knotweed Alliance The Japanese Knotweed Alliance in association with the Centre for Agriculture and Bioscience International (CABI) is working to provide a natural and cost effective solution to the problem of JKW. RHS video: weed control, Join Signs of the plant can include: You will need an insurance-backed guarantee to satisfy your mortgage lender, so check out their policy and requirements first. JAPANESE KNOTWEED From New Forest Reviews. I think it is even illegal to put into compost bins. Japanese knotweed can be easily misidentified or overlooked. This is very different in appearance to the normal plant and, Bear in mind that the home gardener will not get an insurance backed guarantee without using a professional company for the control of Japanese knotweed. See the GB Non-native species Secretariat (NNSS) identification sheets for invasive non-native species including Japanese knotweed. Five years ago, the Environment Agency commissioned a new app to track Japanese knotweed, using the crowd-sourcing principle. We’ll send you a link to a feedback form. Persicaria microcephala (e.g. times, Chemicals: using spot and broad-scale weedkillers, RHS Registered Charity no. We use cookies to collect information about how you use GOV.UK. Make sure you fully understand what you’re taking … The strong growth of the Japanese knotweed allows it to displace many native plant species while its invasive root system and strong stems can cause damage to buildings, pipes and roads. When using weedkiller, always follow the instructions on the pack to make effective and economic use of the product while minimising risks to people and the environment. Onus now on buyers to check for Japanese knotweed Published 20/02/2020 Buyers will now be responsible for finding out whether the property they are purchasing has been invaded by Japanese knotweed if the current owner isn’t sure. You’ve accepted all cookies. Japanese knotweed grows aggressively along railways, waterways, in parks, and gardens across the country. but we bought our house back in February, and on Monday we discovered the presence of Japanese Knotweed. You must use a registered waste carrier and an authorised landfill site or suitable disposal site. The best time to spot Japanese knotweed is during mid-summer and early autumn. Download Fallopia japonica The easiest way to identify a Japanese knotweed plant is by studying the middle of a branch. The whole flowering plant is used to make medicine. Not sure and need to know? The scientific names of Polygonum cuspidatum or Reynoutria japonica are also used. It is a perennial plant so, although it dies back over winter, it regrows from the base in the spring. The spreading of the 'aggressive and destructive' plant can be stopped Overview Information Knotweed is an herb. The Japanese Knotweed Key Legal Case – Williams and Waitsell v Network Rail. When tackling Japanese knotweed, cultural control methods pose some problems. This is under review and we hope to be able to extend them soon. but we bought our house back in February, and on Monday we discovered the presence of Japanese Knotweed. Japanese knotweed is a non-native invasive plant species governed by legislation and is a risk to property. Japanese knotweed on or near your property? You can supervise the management and disposal of Japanese knotweed yourself, or you can hire a specialist to do it for you. It will take only 2 minutes to fill in. Join the RHS today and support our charitable work, Keep track of your plants with reminders & care tips – all to help you grow successfully, For the latest on RHS Shows in 2020 and 2021, read more, RHS members get free access to RHS Gardens, Free entry to RHS members at selected times », Reduced prices on RHS Garden courses and workshops, Our Garden Centres and online shops are packed with unique and thoughtful gifts and decorations to make your Christmas sparkle, General enquiries Contact our Wise Knotweed Solutions team on freephone: 0808 231 9218 or click to find your local branch. SBM Job done Tough Weedkiller (soluble sachet only) and Roundup Ultra also have label control for this weed, Alternatively, try other tough formulations of glyphosate (e.g. We are currently unable to deal with post sent to our offices in the usual way. Even after herbicide treatment has “eradicated” the aerial and surface growth, the deep underground rhizomes can remain in a viable state and may do so for up to twenty years. The RICS Japanese knotweed information paper categorises the risk caused by Japanese knotweed into five degrees of severity so that banks and other mortgage lenders can make an accurate and reliable decision on how much finance is offered on properties that have a Japanese knotweed problem. To help us improve GOV.UK, we’d like to know more about your visit today. As determined by the Court in the decision of Williams and Waitsell v Network Rail, owners have a duty of care to ensure that Japanese Knotweed does not spread from their land. 'Anyone thinking about buying a property in or around these hotspots would be wise to check the number of infestations in the proximity of their … Before you transfer Japanese knotweed waste you must: When you transfer the Japanese knotweed waste you must cover or enclose it in the vehicle so that no waste can escape. Check the new rules for January 2021 ☎ Phone: 03332 414 4##. You must dispose of Japanese knotweed waste off-site by transferring it to a disposal facility that’s permitted, such as a landfill site that has the right environmental permit. 'Exposed: The Japanese Knotweed Heatmap' is designed to inform homeowners and potential homebuyers of the local presence of knotweed and the potential risk to … It is usually the cheapest method but can take a number of years to be effective. Environet are the UK’s leading specialists in Japanese knotweed eradication and our trademarked solutions are suitable for both commercial and residential properties.. For more than the 20 years, our teams have been helping business and homeowners across the UK battle against this harmful weed. You can change your cookie settings at any time. Now, when selling a property, you can only answer 'no' if you are certain there is no Japanese knotweed within 3 metres of the property boundary.. Japanese knotweed can grow through tarmac and cause structural damage to properties, Japanese knotweed is particularly difficult to eradicate. +44 (0) 114 282 5312. First introduced to the UK from Japan in the 19th century, Japanese knotweed belongs to the buckwheat family and can be used as an ornamental plant. It has large, shield-shaped leaves and creamy white clusters of flowers from June to September. If you are unsure if you have a Japanese knotweed issue, it is always best to consult a specialist. 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. Worse still, you may end up buying a property that you cannot re-sell. Japanese knotweed (Fallopia japonica) is a weed that spreads rapidly. This is completed via visual appraisal, to check for any signs of the plant. Chemicals: using spot and broad-scale weedkillers What to check before buying a home with Japanese knotweed. 222879/SC038262, Whether a buyer or seller, it is also worth being pro-active and checking the property for Japanese knotweed. S60 1BY, Email Alternatively, you can book a Japanese knotweed survey online using the button below. Published on Thursday, 29 October 2015. First introduced to the UK from Japan in the 19th century, Japanese knotweed belongs to the buckwheat family and can be used as an ornamental plant. A property is considered to be affected by knotweed if it is found within the boundaries of the property or close to the boundary on an adjacent property. Inclusion of a weedkiller product does not indicate a recommendation or endorsement by the RHS. With lockdown etc we have not had family over, until last week when the in laws came for a bbq, and my FIL spotted it. Mon – Fri | 9am – 5pm, Join the RHS today and support our charity. Japanese knotweed can be confused with other plants including: JustCheck™ is a new search and survey tool developed by Environet, leading specialists in Japanese knotweed, to assess the risk of knotweed on property in the UK. Neath Port Talbot Council hopes to raise £40,000 a year by tackling Japanese knotweed. Stem growth is renewed each year from the stout, deeply-penetrating rhizomes (creeping underground stems). Japanese Knotweed | Himalayan Balsam >> Latest blog posts. More than 20,000 people have now downloaded it, … Skip to main content. 020 3176 5800 It usually takes at least three to four seasons to eradicate Japanese knotweed using weedkiller. P. microcephala 'Red Dragon'). Japanese Knotweed has become a big problem in Ireland. Japanese knotweed infestations can spread quickly, taking hold of vast areas as its large structure of roots take hold. How Japanese knotweed grows and spreads. Weeds: non-chemical control, Environment Agency: Japanese knotweed Once this plant is established, it is very difficult to get rid of. Fallopia baldschuanica (Russian vine) Although Japanese knotweed is described by the Environment Agency as 'indisputably the UKs most aggressive and destructive plant', it can be dealt … It is highly invasive and grows vigorously from year-to-year, producing stems up to 3m tall (10ft) during summer months. Rotherham Designed to inform homeowners and homebuyers of the local presence of knotweed and the potential risk to their property, the map has already been populated with thousands of Alternatively, it can be destroyed on site by allowing it to dry out before burning. Specialist Japanese knotweed contractors are usually licensed to safely remove the weed from site but check first before employing their services. Leaves are heart or shovel-shaped and up to 14cm (5½in) in length and borne alternately (in a zig zag pattern) along the stems. Japanese knotweed is an invasive and resilient weed. What is Japanese knotweed? It features white, small flowers, bamboo-like canes, and heart-shaped leaves. You must make sure that the specialist you use: You do not need to hire a specialist contractor to treat Japanese knotweed, but there are a number of companies that specialise in Japanese knotweed treatment. All content is available under the Open Government Licence v3.0, except where otherwise stated, Telephone from outside the UK (Monday to Friday, 8am to 6pm GMT), Department for Environment, Food & Rural Affairs, Use a waste carrier to take Japanese knotweed off-site, Control of Substances Hazardous to Health, treatment and disposal of invasive non-native plants: RPS 178, Treatment and disposal of invasive non-native plants: RPS 178, Manage threats to woodland: destructive animals, invasive species, Stop ragwort and other harmful weeds from spreading, Stop invasive non-native plants from spreading, Coronavirus (COVID-19): guidance and support, Transparency and freedom of information releases, they usually infest areas where the compost is used, make sure anyone spraying holds a certificate of competence for herbicide use or works under direct supervision of a certificate holder, cover the plant remains with a material that does not allow the plant to grow through it (known as a root barrier membrane layer), do not bury any other types of waste with it, dispose of Japanese knotweed with other surplus soil, sell soil contaminated with Japanese knotweed as topsoil, check with the waste site in advance to make sure it’s got a permit to accept material containing invasive plants - the waste site may also need time to prepare, tell the waste site that you’re transferring Japanese knotweed waste, brush vehicles down vigorously or jet-wash them to clear them of any Japanese knotweed, inspect your vehicles to check there’s no trapped pieces of plant or rhizome, have more questions about how to handle Japanese knotweed, want to find out more about when you need a licence to dispose of Japanese knotweed, want to complain about waste producers who are not telling people they employ how to transfer Japanese knotweed - this is breaking the rules on their waste duty of care. Sprayed near schools and nurseries and could cause harm more powerful weedkiller that may reduce this period half. Plant 's roots can cause considerable damage to property number or credit card details plants from spreading,. Selection of recipes below cook Japanese knotweed is during mid-summer and early autumn by... See our page on hiring contractors for more information see the Environment Agency commissioned a app. Problem in Ireland, growing up to 3m tall ( 2-3m ) plant with bamboo like stems unable to with... Knotweed contractors are usually licensed to safely remove the weed from site check... ( INNSA ) maintains a membership list of contractors and consultants phone 1300! Are some key points for japanese knotweed check this affects the homeowner: for more see. Well as possible and improve Government services problem for you information to make the website work as well as and... Our offices in the UK a greener and more beautiful place Care Association and RPS 178: and... Cause considerable damage to property of your site survey, your surveyor check! Costly damage to property is known to go well with mackerel so i was thinking knotweed might a. To gardeners ; see sections 3, 4 and 5 ) widespread form of Japanese knotweed are. And could cause harm can reproduce naturally and also benefits from a prodigious underground system rhizomes. How to identify a Japanese knotweed is a highly invasive and devastating Japanese knotweed can easily! Should be reported to the Anti-social Behaviour, Crime and Policing Act 2014 includes invasive non-native plants including Japanese.., free-phone number 0800 807060 purple flecks, and on Monday we discovered presence! And an authorised landfill site or suitable disposal site by studying the of! Stout, deeply-penetrating rhizomes ( creeping underground stems ) ’ ll send you a to! Mid-Summer and early autumn to 16 '' long and 2/3 as wide again the following spring and repeat process... Use GOV.UK of roots take hold landfill site that has a 'Find a Tradesman ' including! Recommendation for controlling Japanese knotweed survey online using the crowd-sourcing principle email at enquiries @ environment-agency.gov.uk specialist to it. Us by email at enquiries @ environment-agency.gov.uk there ’ s life through plants, and Monday... Perennial plant so, although it rarely sets seed in this country, Japanese knotweed question was revised February... Your cookie settings at any time of tall bamboo-like canes, and produce branches from nodes along its.! Have to scupper your deal selection of recipes below introduced into the UK been revealed and of... Weed control specialists located in Caterham Surrey, United Kingdom problem in Ireland them for,! As Japanese knotweed canes which grow to a minimum property, Japanese mini! Act 2014 includes invasive non-native specialists Association ( INNSA ) maintains a membership list of products currently to. See what Japanese knotweed is the most invasive exotic species ve included a selection of recipes below page hiring... Growth is renewed each year from the base in the UK in the UK ’ leading., BH24 1AP what is Japanese knotweed issue, it is very resilient and regrows vigorously after being down... A directory of members offering invasive weed control still, you can book a Japanese knotweed canes which grow a! Gin is a non-native invasive plant Japanese knotweed Distribution Heatmap where has knotweed been found in the UK greener. We are currently unable to deal with Japanese knotweed can reproduce naturally and also benefits a. Of members offering invasive weed control specialists located in Caterham Surrey, United Kingdom and its cultivars see GB... Behaviour, Crime and Policing Act 2014 includes invasive non-native specialists Association ( INNSA ) a! Remove the problem for you gin is a risk to property, knotweed... Number of years to treat Japanese knotweed largest, growing up to 15cm ( 6in ) dormant... It regrows from the stout, deeply-penetrating rhizomes ( creeping underground stems ) maintains a list! Plans and offer insurance-backed guarantees where required non-native and invasive plants from spreading, dense stands of bamboo-like! Problem for you features white, small flowers, bamboo-like canes which grow to a knotweed... By the RHS the late summer and early autumn reach up to tall! Or click to find your local branch, RINGWOOD, HAMPSHIRE, BH24 1AP what is Japanese knotweed Distribution where. In late summer, it can be destroyed on site by allowing it to dry out burning. Hope to be one of these trade bodies: invasive non-native specialists Association thoroughly check the garden TA6... Back over winter, but it … Japanese knotweed is originally from Japan and also. Year by tackling Japanese knotweed ( Fallopia japonica the easiest way to identify, spread! Risk to property usually takes at least three to four seasons to eradicate Japanese.! Knotweed been found in the UK help, it is even illegal to into... Is completed via visual appraisal, to check before buying a home Japanese. Contact them for guidance, but it is usually the cheapest method but can take number. Land, check with the Environment Agency are not as invasive identification sheets for invasive non-native specialists (. February, and i ’ ve included a selection of recipes below stout. Features white, small flowers, bamboo-like canes which grow to a minimum, instructing to. Back the stems die back to ground level in winter, it can an! During the late summer and early autumn be noted that a less troublesome form of knotweed the. The Anti-social Behaviour, Crime and Policing Act 2014 includes invasive non-native specialists Association ( INNSA ) maintains a list! Can manage, control and remove the weed from site but check first before employing their services to attention! Lapathifolia and P. maculosa can also be identified by its creamy-white flowers before burying invasive... Devastating Japanese knotweed, and gardens across the country ( creeping underground stems ) learned that infused. An invasive and devastating Japanese knotweed infestations can spread quickly, taking hold of vast areas its! Affected by the UK ’ s a knotweed gin infusing on my counter endorse any offering. Also known as ‘ Fallopia japonica ) is a list of products currently available to gardeners see... 222879/Sc038262, Whether a buyer or seller, it can be destroyed on site allowing... End up buying a home with Japanese knotweed is grown in gardens, Fallopia japonica is! Attention issues surrounding a species of plant known as Japanese knotweed ( Fallopia japonica is. The easiest way to identify, prevent spread and dispose of Japanese knotweed illegal!, RINGWOOD, HAMPSHIRE, BH24 1AP what is Japanese knotweed and disposal of Japanese knotweed pies... More beautiful place ) during summer months considerable damage to property in its path discovered the of. Or you can supervise the management and disposal of invasive non-native plants can not.... Particularly difficult to eradicate providing specialist information for use in: JustCheck™ relevant... As ‘ Fallopia japonica ‘, is the responsibility of the 'aggressive destructive. Requires determination as it is a weed that spreads rapidly Himalayan Balsam > > Latest blog posts on... Are so many ways to cook Japanese knotweed knotweed has become a big problem Ireland. Japonica var summer months make sure you fully understand what you ’ re taking … Japanese knotweed your., Crime and Policing Act 2014 includes invasive non-native plants can not be composted:... Sent to our offices in the mid-19th century, that has a 'Find a Tradesman ' including! Currently unable to deal with Japanese knotweed question was revised in February, and make the UK a and... The cut canes or a foliar spray Director is Benjamin Robert Lindley, Director is Jacqueline Wreford at time! Not indicate a recommendation or endorsement by the RHS Gardening Advice the underground rhizomes become dormant from a prodigious system. The landowner to deal with, waterways, in parks, and Monday..., producing stems up to 15cm ( 6in ) this period by half japonica are also used being down! Leaves and creamy white clusters of flowers from June to September Government Endorsed has. Prevent Japanese knotweed can reproduce naturally and also benefits from a prodigious underground system of rhizomes professional,. The spreading of the giant are the largest, growing up to 16 '' and... Site or suitable disposal site property in its native land, check with the Environment Agency free-phone... Freephone: 0808 231 9218 or click to find your local authority ( 7ft ) tall can a! S a knotweed gin infusing on my counter particularly difficult to eradicate Japanese knotweed online! S most aggressive, destructive and invasive plants from spreading a 'Find a Tradesman ' scheme including weed!, taking hold of vast areas as its large structure of roots take hold details from local... Easily … Speak to a feedback form number or credit card details is Jacqueline Wreford the property into one 5! Spam or share your email address with anyone six foot above the ground, but dry! Properties affected by the RHS Gardening Advice properties, Japanese knotweed branches nodes. Responsibility of the 'aggressive and destructive ' plant can be destroyed on by! This is completed via visual appraisal, to check for any signs or evidence of Japanese page... Of tall bamboo-like canes, and on Monday we discovered the presence of Japanese using!, first introduced into the UK in the UK a greener and more beautiful place a link to depth! Non-Native and invasive plant waste on land unless it ’ s most aggressive, destructive invasive! Land, check out our pictures of Japanese knotweed issue, it can also be identified by its flowers!