How to remove Japanese Knotweed from your garden. Companies have been set up to eradicate it, laws have been written to remove it. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Our Disciplines. It was used as an ornamental plant on properties and also for erosion control due to its deep and interwoven root system. SUMMER: JUN - AUG LEARN MORE. Japanese knotweed is native to eastern Asia and was first introduced into North America in the late 1800s. Do an Internet search to find a registered carrier and licensed landfill site near you. “Consequently, there has been an increase in the number of neighbourly disputes following encroachment of bamboo across garden borders. “I have acted for a number of clients who have taken legal action against their neighbour for nuisance caused as a result of a bamboo infestation where the offending party has had to pay significant removal costs and legal bills. Japanese Knotweed is one of the toughest, most damaging and insidious plants in the world. The Moving Hub are looking ahead to further growth ... £50K following a chartered surveyor who failed to identify Japanese knotweed prior to the potential buyer purchasing a £1.2 million London flat, Japanese Knotweed will eventually be brought under control by 2040, Stamp Duty: Why it might pay to wait and not rush to meet the deadline on March 31st, Extending SDLT holiday “critical” for the economy and property sector, December 2020 – Land Registry Transaction Data, Property Market Remains Open following Tier Review. 1 Million New Homes By 2024: Manifesto Mania Sweeps ... SLC Chairperson Valerie Holmes Reflects On Conveyancing Sector. It grows to heights of 7 feet (2.1 m), and the roots can be twice that deep. How much does it cost to remove Japanese Knotweed? What you should know. Continue spaying the weeds each spring and fall with weedkiller until it’s gone. Unlike knotweed though, bamboo has no lending restrictions and it is not the requirement of sellers to tell prospective buyers that the plant has proved a big problem. We can remove Japanese Knotweed from your property permanently. There is now one Japanese knotweed infestation for every 10 square kilometres in Britain. Yet bamboo can pose the same amount as risk as knotweed and damage to property can be costly and cause acrimonious disputes between neighbours if it spreads onto adjoining properties. She earned a BA in Environmental and Sustainability Studies from Western Michigan University in 2014. Nic Seal, MD of Environet UK, which deals with all types of invasive plants, said: “Bamboo is a vigorous and fast-growing plant that has been steadily growing in popularity in the UK over the last decade or so; but it’s very difficult to contain and virtually impossible to kill with herbicide. Japanese knotweed distribution map. Its roots grow up to 3m deep into the ground, making it a nightmare to completely remove. How to identify: green shovel shaped leaves; stem is bamboo like in appearance; produces white flowers around September or October. Japanese knotweed was introduced here from Japan in 1850, when it was regarded as a rare beauty thanks to its white flowers. Japanese knotweed is a rapid growing weed which spreads and overwhelms other garden plants. It seems there might be light at the end of a long tunnel as earlier this year, it was revealed that Japanese Knotweed will eventually be brought under control by 2040 as turnover of property and strict rules imposed by mortgage lenders will mean most cases are professionally treated within 22 years – according to research by Environet UK. Japanese Knotweed Law & Legal Advice. To get rid of the weed, you will need to decapitate it to leave a hollow, foot-high stem above ground. For this reason, we suggest contacting a professional Japanese Knotweed removal company, instead of opting for DIY Japanese Knotweed removal. “It’s commonly sold at nurseries and garden centres across the country with little or no warnings about its invasive nature or sensible advice about how to contain it.”, “Estate agents and surveyors should look out for signs of the plant growing out of control and alert potential buyers to the problem, which usually requires professional excavation.”. Prevent spread of Japanese knotweed. CONTACT US NOW. To get rid of Japanese knotweed, start by using garden shears to cut off the canes as close to the ground as possible. tb1234. Also known as Polygonum cuspidatum or Fallopia japonica, Japanese knotweed is one of the most invasive plants in the UK. CONTACT US. There is a new weed on the block, called Bamboo, which could rival the invasive plant Japanese Knotweed, warns Environet UK. Managing Japanese Knotweed: Two Small-Scale Strategies. Japanese knotweed is a tenacious, invasive plant which can be subject to Government legislation. September 14, 2011 in Invasive Plants. Don’t despair, however: with a little time, effort, and patience … One of the most frustrating aspects of landscaping is watching new plantings get overtaken by invasive plants. In the spring, a homeowner was awarded £50K following a chartered surveyor who failed to identify Japanese knotweed prior to the potential buyer purchasing a £1.2 million London flat. Japanese knotweed is an invasive ornamental plant that can be tough to remove. Japanese knotweed is an extremely hardy plant, it is important that every trace of the weed is killed off and removed from the site, to ensure that the plant doesn’t start to grow back and re-establish itself. “Due to the increase in nuisance claims it is something that the mortgage companies are closely looking at and I wouldn’t be surprised to see them imposing lending restrictions on properties that suffer with bamboo infestations in the future.”. Japanese knotweed treatment will exhaust the plant from producing aerial growth and prevent its natural spread. It’s fast growing ability means it can fully take control of your land if not treated early, leading to potential Japanese Knotweed damage to your property, a decrease in property value or costly legal battles if you have allowed Knotweed to spread to a neighbouring property. It usually requires a multi-prong approach to achieve complete eradication. The whole flowering plant is used to make medicine. It’s often used as a catch-all term to refer to all the invasive knotweed species. SPRING: MAR - MAY LEARN MORE. Overview Information Knotweed is an herb. If the knotweed has invaded your garden to the point where you can’t spray weedkiller for fear of ruining other plants, paint a glyphosate gel on the individual canes and leaves instead. The whole flowering plant is used to make medicine. CONTACT US NOW. Chinese Knotweed is far more easier to eradicate than Japanese Knotweed. Cutting the plants down to ground level can stall their progress, but by sure to plan your attack for the end of June; too late and you risk spreading the seeds, too early and you risk precipitating a regrowth of new stems. Suite 5 Wright House, 67 High Street, Tarporley, CW6 0DP. However, bamboo is found to be highly invasive and can easily spread out of control like Japanese Knotweed. This article has been viewed 88,731 times. Japanese knotweed is an invasive ornamental plant that can be tough to remove. Whereas Japanese Knotweed poses an enormous risk to the native bio-diversity in the UK and it is against the law to cause or allow the plant to spread in the wild. 0800 020 9171. The 5 mistakes you'll probably make in your first relationship. Japanese Knotweed is one of the world’s most invasive plants. Japanese knotweed is notorious for deterring home buyers, as well as being a reason for mortgage providers refusing a loan on a property. Don’t despair, however: with a little time, effort, and patience you can get rid of Japanese knotweed for good. By Tara Mitchell and John Bartenstein. What you should know. There is now one Japanese knotweed infestation for every 10 square kilometres in Britain. Reynoutria japonica, synonyms Fallopia japonica and Polygonum cuspidatum, is a large species of herbaceous perennial plant of the knotweed and buckwheat family Polygonaceae. Now that you’re ready to get rid of these invasive plants, something you might want to do to prepare for the process is to gather your supplies. We are using cookies to give you the best experience on our website. Knotweed is a highly successful invader of wetlands, stream corridors, forest edges, and drainage ditches across the country. Lauren has worked for Aurora, Colorado managing the Water-Wise Garden at Aurora Municipal Center for the Water Conservation Department. Japanese knotweed is a highly invasive plant and one that can cause damage to property in its path. I only became suspicious that it might be invasive when my attempts to remove it failed.” Marshall put in a call to invasive plants specialists, Environet UK, which soon identified it as the unusual variety of knotweed which can be just as invasive and vigorous as both its parents. For Japanese-knotweed eradication on your property and surrounding areas, it is vital to deal with the plant correctly. All viable parts of the plant need to be destroyed. These laws have been put into legislation slowly … Japanese knotweed sketchbook study. Stay up-to-date with all the latest industy news. Here, experts explain the best methods for naturally eradicating Japanese knotweed from your garden. http://dnr.wi.gov/topic/invasives/documents/japanese_knotweed_control.pdf, https://www.rhs.org.uk/advice/profile?pid=218, http://home.bt.com/lifestyle/house-home/gardening/how-do-you-get-rid-of-japanese-knotweed-11364170417724, consider supporting our work with a contribution to wikiHow. However, these are all great to keep on hand throughout your yearly yard work endeavors anyway. The plant can be a real problem since it can grow through a number of materials such as tarmac, concrete flags, blocked paving and even walls. Japanese knotweed (Polygonum cuspidatum)—nicknamed Godzilla weed—is one of the world's most invasive plants.If you've ever attempted to eradicate this weed, you already know of its Godzilla-like qualities. LEARN MORE. Legislation: Northern Ireland; Under article 15 of the Wildlife (Northern Ireland) Order 1985, it is an offence to plant or otherwise cause to grow in the wild Japanese knotweed or any other invasive plant listed in Part II of schedule 9 to that Order. If even the smallest part of a plant is left in soil, it can make a speedy return and continue to grow up to 10cm per day during spring and summer. Its presence can prevent a mortgage lender approving a loan and therefore impact a property’s value by up to 10%. Mark Montaldo, solicitor and director at CEL Solicitors which handles legal claims relating to invasive plants, said: “Bamboo is a growing problem, as unlike Japanese knotweed it’s not officially classed as an invasive species and there are currently no restrictions on planting it. Japanese knotweed (Polygonum cuspidatum) is a non-native invasive species that threatens our community. To get rid of the weed, you will need to decapitate it to leave a hollow, foot-high stem above ground. Environet UK advises homeowners that all bamboo should be planted in containers with root barriers to stop it from spreading. Once a week, mow the area to trim down any remaining knotweed until the plant weakens and dies. WINTER: DEC - FEB LEARN MORE. All viable parts of the plant need to be destroyed. And the threat is real: it can lower house prices, threaten our bridges, and drive men to madness. See how far it is from your area with our Japanese Knotweed distribution Map covering all the hotspots.. Cut all of the Japanese knotweed plants down to the ground. Japanese knotweed is a rapid growing weed which spreads and overwhelms other garden plants. If you have the time and determination, it is possible to remove Japanese Knotweed yourself. Japanese knotweed is an extremely hardy plant, it is important that every trace of the weed is killed off and removed from the site, to ensure that the plant doesn’t start to grow back and re-establish itself. After 7 days, pull out all the dead knotweed and dig out the roots with a pitchfork. By signing up you are agreeing to receive emails according to our privacy policy. Date of bloom. Treatment methods include stem injection, herbicide spray and leaf wiping. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/53\/Get-Rid-of-Japanese-Knotweed-Step-1.jpg\/v4-460px-Get-Rid-of-Japanese-Knotweed-Step-1.jpg","bigUrl":"\/images\/thumb\/5\/53\/Get-Rid-of-Japanese-Knotweed-Step-1.jpg\/aid9386601-v4-728px-Get-Rid-of-Japanese-Knotweed-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"