Japanese knotweed

2022 - 5 - 11

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Image courtesy of "Telegraph.co.uk"

The UK's worst Japanese knotweed hotspots revealed (Telegraph.co.uk)

Is the invasive species in your back garden? We map the areas most at risk from plant that costs the UK economy over £40million a year.

“So in these sorts of properties you would just go for a herbicide treatment and control it that way. So that might be a ten grand fee for a £1,000,000 house. It hibernates through winter and reawakens in the spring and spreads rapidly, with its root network expanding at an alarming rate. “There is also a lot of it in Wales and I think the reason for this is that for many, many years, the attitude was, ‘well, there's so much around that there's nothing we can do about it’. “If there was a million-pound house in London we would likely say that the value of the property justifies getting rid of the infestation properly, which means digging it up. “I think the reason why we see it far more in cities is because there has been more and more human movement of soil,” he told The Telegraph.

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Image courtesy of "HampshireLive"

Hampshire Japanese Knotweed hotspots including in Aldershot ... (HampshireLive)

The invasive plant can reduce a property's value by 5%, according to Environet.

Elsewhere in East Hampshire there have been seven occurrences within a 4km range of Petersfield, while there have been around 40 cases in 4km of Liphook (many of these over the West Sussex and Surrey borders). - In May the plant starts to grow rapidly. Occurrences have also been recorded in the New Forest, although these appear to be much rarer. Further south and there has been 18 occurrences within 4km of Waterlooville and 23 occurrences within 4km of Portchester. Southampton tops the Japanese Knotweed hotspot list for 2022 with 49 infestations within a 4km radius. Thankfully UK housing regulation requires knotweed to be dealt with when a property is sold to a buyer using a mortgage or if it encroaches across a garden boundary.

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Image courtesy of "Somerset Live"

Japanese knotweed warning as map shows invasive plant is ... (Somerset Live)

Japanese knotweed is rampant in Bath, a new heatmap has shown. There are roughly 76 infestations within a four-kilometre radius, making it the worst ...

- In May the plant starts to grow rapidly. The roots can grow as deep as three metres and spread up to seven metres horizontally. Anyone living near or moving to one of these hotspots would be wise to check their garden carefully, enter their postcode into Exposed to find out how many known occurrences are nearby and if in doubt, seek expert help."

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Image courtesy of "Falmouth Packet"

Japanese knotweed hotspots in Cornwall (Falmouth Packet)

Japanese knotweed has a bad name amongst horticulturists and homeowners alike as the incredibly invasive plant can damage property and land beyond recognition.

To view Japanese knotweed infestations in your area or to report a sighting, visit: https://environetuk.com/exposed-japanese-knotweed-heat-map The Cornwall Japanese knotweed hotspots for 2022 are: Falmouth with 31 infestations in a 4km radius, Camborne (46), St Austell (32), St Blazey (42) and Bodmin (22). Populated with more than 55,500 known infestations of Japanese knotweed, charting the spread of the plant across the UK, Exposed informs homeowners and potential homebuyers of the local presence of knotweed and the potential risk to their property.

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Image courtesy of "Devon Live"

Devon's Japanese knotweed hotspots revealed (Devon Live)

The UK's most invasive plant is Japanese knotweed which can grow into cracks in concrete, driveways, patios, paths, drains, even inside the wall cavities in ...

Summertime is when Japanese knotweed grows quickly and it can grow up to three metres tall. - In May the plant starts to grow rapidly. The UK's most invasive plant is Japanese knotweed which can grow into cracks in concrete, driveways, patios, paths, drains, even inside the wall cavities in houses.

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Image courtesy of "Maldon and Burnham Standard"

New data reveals Japanese Knotweed hotspots in Essex (Maldon and Burnham Standard)

Japanese knotweed is the UK's most invasive species of plant, and hotspots have been found in numerous locations in Essex.

They will be able to tell you where it originated, and the best way to tackle it. The roots can grow as deep as three metres and spread up to seven metres horizontally. The invasive plant species is responsible for damaging homes, pavements and drains and can spread up to seven metres horizontally.

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Image courtesy of "ManchesterWorld"

Bolton identified as national hotspot for Japanese knotweed - how to ... (ManchesterWorld)

Tens of thousands of infestations of the invasive plant have been recorded on the interactive online heatmap. By Andrew Nowell. Wednesday, 11th May 2022, ...

Bolton Council said it treated Japanese knotweed on its land if it is growing close to the property boundary, in an ornamental area, somewhere that is due to be mowed or if it threatens sensitive wildlife habitats. Homeowners will not be breaking the law if they have knotweed on their land, but they will be liable if they allow it to spread to someone else’s property through inaction. If a Japanese knotweed infestation is confirmed homeowners need to seek professional advice on the size of the growth area and how it should be tackled. The Japanese Knotweed Agency, for example, has an interactive map which it is calling a national register with some 23,000 sightings of the plant recorded on it. The tell-tale signs which can be used to spot the Japanese knotweed are: Bolton has been identified as a national hotspot for the invasive plant Japanese knotweed - and other areas in Greater Manchester which have issues with it have been revealed.

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Image courtesy of "Birmingham Live"

Mapped - Where Japanese knotweed is growing the fastest in the ... (Birmingham Live)

Research has shown the number of infestations of Japanese knotweed in areas within the West Midlands. The growing season for the invasive plant species is ...

- In May the plant starts to grow rapidly. For homeowners, the plant can pose serious problems if left unchecked, with the potential to grow up through cracks in concrete, tarmac driveways, pathways, drains and cavity walls. Anyone living near or moving to one of these hotspots would be wise to check their garden carefully, enter their postcode into Exposed to find out how many known occurrences are nearby and if in doubt, seek expert help."

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