Japanese knotweed facts. Everything you need to know about a Japanese Knotweed Mortgage all in one place. A common occurrence is where the Japanese knotweed on your property extends into the next door neighbour’s plot or your property is free of the weed but it is within 7m of a boundary on adjacent land. Alamy Stock … Specifically, 68 residential properties in … Japanese knotweed is an invasive plant which property experts have noted causes damage to people's homes if left unattended. 023 8089 2996; mark@albionforest.co.uk ; Facebook. Lookout for Japanese knotweed … I’ll give you the top 6 reasons why a property owner should get knotweed tackled that is growing on their land. Whilst not harmful to humans, Japanese Knotweed can create devastating damage to your property. Japanese Knotweed was brought to Europe from Japan in the mid 19th century by Philipp von Siebold who discovered it growing on the sides of volcanoes. And the plant can regrow from even a tiny fragment of its root – so getting rid of it … Why is Japanese knotweed so bad? Whose responsibility is it to survey, inform and take care of Japanese knotweed removal? Japanese knotweed lies dormant in winter but spring sees its reddish-pink buds starting to sprout from a lime-green bamboo-like stem. In fact, it is edible, but it is not recommended you eat the weed raw, as some … The definitive guide. Waste disposal. You must prevent Japanese knotweed on … Japanese knotweed is one of the most damaging invasive weeds in the UK, Europe and North America. In fact, invasive species of bamboo have rhizomes that can reach out up to 30 feet beneath the surface, crossing property boundaries and causing structural issues in the process. Why is Japanese Knotweed ‘so bad’? Why does Japanese knotweed affect my mortgage chances? Local Authorities are also refusing planning permission to infested areas. Why is it bad for my house? On the surface, it quickly outgrows other plants, blocking natural light and killing anything underneath. According to Defra, look for: Water quality and flood risk: With dense canopies of leaf in the summer, Japanese knotweed can cause shading of small streams, and intercept rainfall channelling it elsewhere. Removing knotweed from the London Olympics site cost £70 million. That’s why the Environment Agency describe Japanese knotweed as “indisputably the UK’s most aggressive, destructive and invasive plant”. Identify Japanese knotweed. Reynoutria japonica, synonyms Fallopia japonica and Polygonum cuspidatum, is a large species of herbaceous perennial plant of the knotweed and buckwheat family Polygonaceae. Prevent spread of Japanese knotweed. Because of this it contributes to the erosion of river banks, increasing the risk of flooding and damage to property. Whatsapp. Taking over Britain. According to industry experts, invasive breeds of bamboo can be just as bad, if not worse than Japanese knotweed, in terms of its ability to spread underground. As well as destroying concrete foundations, it can damage flood defences and architectural sites. Unknowing Victorian botanists brought the weed over to the UK because they liked its aesthetic appeal, its similarity to bamboo and the fact that the stems could grow large enough to be used as fences. Scientists say the plant is relatively harmless and is a victim of bad media that has fuelled a fearful reputation that is largely undeserved. Not only is Japanese Knotweed destructive (it can destroy concrete) but it also grows at a rapid rate and is extremely difficult to eradicate, hence why some lenders are reluctant to lend on properties affected by it. Japanese Knotweed grows quickly and its strong roots can create a destructive underground network undermining buildings and foundations , and potentially causing … As knotweed spreads extremely fast, it is surprising that it went undetected for years. Growing up to a metre a month, it can push through tarmac and concrete. It grows very quickly, it can cause damage as it spreads, and if there's Japanese knotweed in your garden, you may find it difficult to sell your property. The plant can grow up to 10cm per day, up to 3 meters high, and can be powerful enough to break through concrete and undermine foundations of properties. Protect your assets. Still, knotweed's not all bad. Getting rid of Japanese knotweed on development land is something of a grey area. 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. As seen in the video snippet above, the threat of damage from Japanese Knotweed has seen a number of mortgage companies refusing to lend on properties that are affected by Japanese Knotweed. You should also never strim Japanese knotweed as it will then spread to surrounding areas. Japanese knotweed has long been feared by property owners, and London is a hotspot. Japanese Knotweed is the most common form of knotweed. Twitter. Knotweed is considered to be one of the worlds worst invasive species. The consequences of letting Japanese Knotweed spread Why Japanese Knotweed is a problem? Japanese knotweed starts growing from early spring and can reach 1.5m by May and 3m by June, before dying back between September and November. Why is it such a problem? Japanese knotweed is not poisonous to humans. This article on this common plant is written by Nick Bevan of Bevans Chartered Surveyors, providers of commercial property acquisition advice as well as party walls, project management and disabled access consultancy services . Japanese knotweed is "indisputably the UK's most aggressive, destructive and invasive plant", says the Environment Agency. Learn more. As it sprouts out looking for sustenance, Japanese knotweed can break open cracks in foundations, brick walls, and damage sewage and drainage works. Japanese knotweed has deeply penetrating, creeping roots, which have been known to reach 3 metres deep underground. Speak to an advisor today to learn more. Japanese Knotweed is a fast-growing invasive plant with bamboo-like stems and small white flowers. The root system and strong growth can damage concrete foundations, buildings, roads, paving, retaining walls It is frequently found in roadsides and waste places. Japanese knotweed is a fast-growing, invasive weed that originates from Japan. The whole flowering plant is used to make medicine. Biodiversity: Japanese knotweed affects ecosystems by outcompeting native vegetation and limiting species diversity, and is therefore widely attributed to causing reduced species diversity in both flora and fauna. Japanese knotweed is no more dangerous than buddleia because it doesn't cause structural damage to homes, researchers claim Lenders can deny people mortgages unless they hire a knotweed removal firm Japanese Knotweed is not the demon plant that can shatter concrete and undermine buildings that everyone believes, according to new research. Other knotweeds include Giant Knotweed (Fallopia sachalinensis), Knotweed hybrid, (Fallopia x bohemica) and Himalayan Knotweed (Persicaria wallichii). Why is Japanese Knotweed so bad? Knotweed is native to Japan and considered to … 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 infestations. You could try digging it out of the garden. Alamy Stock Photo. Japanese knotweed ( Fallopia japonica ) is a weed that spreads rapidly. Overview Information Knotweed is an herb. Exposed: The Japanese Knotweed Heatmap is an interactive online heatmap of Japanese knotweed sightings across the UK. Knotweed will make it more difficult to sell an affected property, on average knocking 10% of its value. Cutting the plant is often ineffective because it does nothing to tackle the underground rhizomes. Fallopia japonica is a tall, herbaceous, perennial plant with woody rhizomes when mature. Japanese knotweed. And yes, it can have a drastic effect on residential property sales so buyers and sellers of knotweed affected property should read on, or watch a short video at environetuk.com. Dealing with the problem of Japanese knotweed on next door’s land. It is not an offence to have Japanese knotweed on your land and it is not a notifiable weed. Japanese Knotweed – is it really that bad? Many of these are harmful to humans and animals, but even non-poisonous plants can cause damage and be costly for home and landowners. Home ; About us; Teacher Mortgage. When summer arrives it can grow a … Introduced to Europe from Japan in … Why Japanese knotweed damage is a problem for mortgages. Why is it such a problem? How to identify Japanese knotweed.. Japanese knotweed is strong and tenacious, so it’s not easy to bring under control. Me Ol’ Bamboo. The strong roots can rampage under fences, damage paths and patios and work their way inside the cavity walls of houses, even emerging two storeys up out of the chimney stack. NEW Knotweed Dog Detection Service. Japanese knotweed is a troublesome plant that causes a lot of problems here in the UK. Instagram. In fact, Japanese Knotweed is no worse for buildings than a tree or any other shrub growing nearby. Eradication requires determination as it is very hard to remove by hand or eradicate with chemicals. It affects it in two ways. In its native Japanese volcanic landscape, the climate and regular deposits of ash would keep knotweed plants … F inally, the researchers conducted a case study of a genuine, worst-case scenario, Japanese knotweed disaster area. It’s perfectly legal to have Japanese knotweed on your property, so this is a worthy question. Is Japanese knotweed poisonous to humans? Why has Japanese knotweed become such a problem? 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