
Japanese Knotweed in 'super growth' across UK expert warns
These conditions can result in "growth spurts" for the invasive plant which can cause a plethora of problems for homeowners, Sold property expert Terry Fisher warned.
What is Japanese knotweed?
Mr Fisher said: 'We've been basking in the glorious sunshine, but now the rain has made an epic return.
'This combination of wet and warm creates the ideal conditions for Japanese knotweed to thrive and even go into a super growth.
"Meaning homeowners might unearth a beast in their gardens this spring.
'The invasive plant is a nightmare - it's relentlessly durable, fast-growing and can cause damage to nearby structures.'
What does Japanese Knotweed look like?
Japanese Knotweed is described as "a persistent, clump-forming herbaceous perennial" by The Royal Horticultural Society (RHS).
Property expert at Saga's home insurance, Anna Thunstrom, added: "Keep an eye out for its characteristic shield or shovel-shaped leaves, along with clusters of creamy white flowers."
Poisonous plants found in the UK
How to remove Japanese knotweed
Japanese knotweed, which was introduced to the UK as an ornamental plant in the nineteenth century, can only be removed with costly specialist treatment.
Mr Fisher said: 'Avoid attempting a DIY removal as you could accidentally spread it further.
"It requires a multi-pronged approach, often involving herbicides and potentially excavation, depending on the extent of the infestation.
"This is all best left to the professionals."
Removing Japanese Knotweed from your property can be "costly", the Sold property expert added, especially if you have to pay for repairs for your home, or your neighbours.
Removing Japanese knotweed can be a "costly" process. (Image: Getty Images/iStockphoto) Mr Fisher continued: "Your neighbours can seek compensation if it breaches onto their land, and you can be fined if it starts to grow in the wild.'
The plant can also spread onto your property from neighbouring land as it tends to grow at an "alarming rate".
Mr Fisher said: 'Japanese knotweed can reach two metres in height within weeks, and if it has encroached from neighbouring land, you have the right to pursue legal action against the landowner for compensation, covering both damages and removal costs.
'Whatever the case, homeowners need to act quickly if any signs of Japanese knotweed appear.'
The legalities to be aware of around Japanese knotweed when selling a property
When selling a home, vendors are legally required to disclose if a property is, or ever has been, affected by Japanese knotweed.
Surveyors also have a legal obligation to look for it as part of their report.
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Mr Fisher added: 'If you're buying a house and a survey flags that a property has Japanese knotweed, you could negotiate the price or ensure the seller treats the plant before the sale goes through,' Terry added.
'After that, it's your job to keep an eye on your garden for any signs of the plant returning. It tends to die back in Autumn but starts to grow again in spring.
'Some homeowners don't know about the existence of the invasive plant until they find it in their garden. In which case, it could be that a surveyor was negligent in their duties, or you could have a case for misrepresentation.'

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The Independent
2 days ago
- The Independent
An expert guide to looking after your lawn and garden during a heatwave
The UK is set for another heatwave. The UK Health Security Agency (UKHSA) has warned of possible deadly effects as it issued heat health warnings for all of England. Amber warnings are in place for the East Midlands, West Midlands, east of England, London and the South East until Wednesday, with yellow warnings in place for the remainder of the country. Southern areas including Berkshire, Oxfordshire and the outskirts of London such as Heathrow may reach 34C. But how do you look after your garden in the heat? 'It's about risk management,' says Nick Turrell, RHS horticultural advisor. 'No-one's going to suddenly change all their plants, getting plants with silver leaves etc. 'Some plants are more susceptible than others, and I would say the top five are hydrangea, which likes slightly cooler temperatures and plenty of water, Japanese maples, which have thin leaves and lose moisture, fuchsia, astilbes and roses, which are hungry and thirsty. They catch gardeners out.' Plants likely to cope better include lavender, rosemary, sedum and other succulents, he says. But what else can we do? 1. Water wisely 'Water in the morning because that's when the plants are going to be needing it during the day,' Turrell advises. 'Don't spray the leaves or water on the top of the leaves, get it underneath to the roots and use a watering can, not a hose, because if you've a hose, you're more likely to liberally spray it around, which means you get a sprinkling on the surface which just evaporates. Get the nozzle of the watering can right in at the roots.' Melissa Quinney at Cabin Master, advises: 'During hosepipe bans or dry spells, greywater (from baths or washing up, provided it's free from harsh chemicals) can be reused to water ornamental plants.' 'It's best to water less frequently but more thoroughly, soaking the rootball properly,' suggests Charles Carr, head of wholesale nurseries at Hillier Nurseries and Garden Centres. Water plants in the area where the roots are, suggests Nick Hamilton, son of the late Gardeners' World icon Geoff Hamilton and owner of Barnsdale Gardens in Rutland. 'Some plants will require more than others, so when considering whether a plant needs water then my view is that if you're not sure, don't water. Don't worry if a plant begins to wilt from under-watering, because if you then apply water, within an hour or so you would never know it was wilting.' Give watering priority to anything which has been planted within the last 12 months, and particularly newly planted trees, Turrell adds. 2. Mulch the surface 'To lock in moisture and protect plants during a hot spell, cover the top of container plants with a mulch such as gravel, bark or a good quality compost. You should also mulch garden beds to help bedding plants retain moisture and give them a nutrient boost,' suggests Dobbies ' plant buyer, Nigel Lawton. 'Add organic mulch such as wood chippings, garden compost or leaf mould to beds to save water and improve moisture retention. A thick layer of mulch will block sunlight, insulating the soil and reducing the amount of water evaporating from the garden,' Carr adds. 'I think a good shredder is a very worthwhile investment as old flower stems, twigs and vegetable material, such as brassica stems, can be shredded down, composted and used as an excellent mulch,' suggests Hamilton. 3. Don't buy new plants If the hot weather is forecast for a few weeks, there's no point planting new plants because you'll just be putting stress on them and on the watering system, Turrell advises. 'Anything that has been established for more than two years should be OK because it already has its roots down deep enough to cope with unusual circumstances. 'But the plants will tell you if they need a drink, when they start wilting or the leaves start to curl up around the edges,' he explains. 4. Take hanging baskets down The compost in hanging baskets can evaporate so quickly that it's best to take them down during a heatwave and put them in the shade where they won't lose water so rapidly, says Turrell. 5. Pick vegetables which are likely to bolt Lettuces are prone to running to seed in hot weather, so pick them young and keep them in the fridge, or shade them with netting to keep the heat of the sun at bay, says Turrell. 6. Find shade 'For those especially vulnerable during extreme heat, temporary shade structures using old bedsheets, garden furniture, or shade cloths can make all the difference,' says Quinney. 7. Huddle patio pots Put patio pots in the shade together to create a microclimate and reduce evaporation, says Turrell. 8. Look after wildlife Make sure birdbaths are topped up because they will need it for drinking and bathing, and put some pebbles in water-filled pot saucers to allow insects to land and drink as well. 9. Leave your grass The grass may look like a mass of straw but it will recover when the autumn rain comes, so if you can stand it looking brown, just leave it, says Turrell. However, if it has been newly laid and hasn't yet been through a winter, you'll need to water it. 'In hot spells, it's best to hold off on applying weedkillers or fertilisers. These can be too harsh when the lawn is already under stress and may cause more harm than good,' says Peter Chaloner, managing director of garden machinery specialists Cobra. 'When grass turns yellow and brittle, it's a sign it's conserving energy due to lack of water. At this point, try to keep foot traffic to a minimum and clear away furniture or toys so the lawn has the best chance to recover undisturbed.' 10. Plant drought-tolerant species If you have spaces you feel you must fill, plug the gap with drought-tolerant species such as lavender, rosemary, salvia and sedum – but remember they will also need watering until they become established. 'Generally, succulents and silver foliage plants like lavender are the best at adapting to warmer conditions, so these are fine to be left as they are, but you should make a point to check up on your other plants throughout the summer months and adjust watering as needed,' says Lawton. 11. Improve your soil 'An excellent way to improve a light soil and increase its moisture retention capabilities is to add organic matter, which could be your own garden compost, green composts or well-rotted farmyard manure. Any one of these can be lightly forked into the surface and then added to the surface as a thickish layer to act as a mulch,' Hamilton advises. 'If you look after your soil, pretty much everything else falls into place,' says Turrell. 'If every year you mulch that soil with as much organic matter as you can, you are helping to prepare for any eventuality.' 12. Use a water butt This is another vital investment, says Hamilton, and can be fitted to trap and hold much needed rainwater – when it does finally come – from all your downpipes. 'I would also consider using the low-pressure leaking pipe that will work from a water butt. When buried just under the soil surface and laid out around the plants that require a bit more moisture, water will just gradually leak out and because it is under the soil, evaporation will be minimal.'


Scottish Sun
30-07-2025
- Scottish Sun
Dramatic moment world knew Hawaii tsunami was coming after 8.8 mag earthquake shook Ring of Fire sparking evacuations
Click to share on X/Twitter (Opens in new window) Click to share on Facebook (Opens in new window) HAUNTING footage shows the moment ocean water receded along a Hawaii shoreline before the first tsunami wave crashed into the coast. At around 7:20 pm local time on Tuesday, the sea was seen drawing back around the time the first wave hit the island and forced residents to evacuate. Sign up for Scottish Sun newsletter Sign up 4 Footage from Hanalei Bay showed ocean water pulling back before tsunami waves struck Credit: Hawaii News Now 4 Tsunami waves barrel toward the Oarai coast in Japan on July 30, 2025 Credit: Getty 4 Tsunami waves hit Hawaii after a massive 8.8 magnitude earthquake struck off Russia's Far East site on the Pacific Ring of Fire on Wednesday, marking one of the strongest quakes ever recorded. Waves from the quake reached Hawaii, Japan, California, and Washington, and left several people injured as they rushed to safety, but none critically. A time-lapse video taken around the time the sun set at Hanalei Bay, on the island of Kauai, Hawaii, shows water being pulled away from the shore as clouds loom over the beach. Soon after the eerie clip was recorded, waves as high as 3.9 feet barreled toward the coast, where surveillance footage at Hanalei Colony Resort also showed the dramatic activity. READ MORE NEWS MEGA QUAKE Tsunami map reveals red alert zones after earthquake sends waves across Pacific Water recedes right before a tsunami when the lowest part of the tsunami wave reaches the coast first. Hawaii was braced for the most severe impact from the quake as millions moved out of the way of the water's potential path. Hawaii Governor Josh Green warned residents to seek higher ground in the face of the expected waves. Evacuation protocols were put in place quickly, and most coastal zones were cleared by 6:30. However, Hawaii's alert level was downgraded to a tsunami advisory just before 11 pm, according to the National Weather Service. The evacuation orders were lifted on the Big Island and Oahu, allowing people to return to their homes. Heartbreaking vid shows whales washed up on beach after Russian mega quake But the advisory means there could still be dangerous waves and some flooding on beaches or harbors. Dave Snider, tsunami warning coordinator with the National Tsunami Warning Center in Alaska, said the effects of the extreme weather could last for more than a day, according to the Associated Press. 'A tsunami is not just one wave,' Snider said. 'It's a series of powerful waves over a long period of time. Tsunamis cross the ocean at hundreds of miles an hour — as fast as a jet airplane — in deep water. "But when they get close to the shore, they slow down and start to pile up. And that's where that inundation problem becomes a little bit more possible there.' What causes tsunamis? Here are the facts... Tsunami is a Japanese word used to describe huge waves – generally on oceans, but sometimes in lakes or large rivers Ocean tsunamis are caused by sudden motions, which displace a large amount of water This is typically an earthquake, but it could also be a volcanic eruption or underwater landslide A huge impact into water – like a large landslide or meteor – can also cause tsunamis When an earthquake happens, huge tectonic plates crunch together When the 'snap' eventually happens, this gives a large shove to water This creates a tsunami that travels very quickly across the open oceans As the ocean becomes shallower, the tsunami wave is forced upwards This means tsunami waves typically grow very quickly in height (and slow down) as they approach the shallow shorelines near land Tsunamis are typically a series of waves, rather than one single wave As they approach land, these waves get closer together One of the best ways to spot an incoming tsunami is a sudden retreat of coastal water If the tide goes out very quickly, it's a telling sign that something is wrong What you're actually seeing is the trough of the incoming tsunami wave – on a huge scale The initial tsunami impact can be deadly But tsunami flooding is also highly dangerous to life, damaging buildings, destroying infrastructure, spreading waste and disease, and drowning people Travelers heading to Hawaii have been stuck at airports as flights were paused to prepare for the monster waves coming to the island. On Wednesday morning, tsunami activity continued in California, with waves reaching heights over 3 feet tall as tourists and locals in San Francisco and Los Angeles remained on high alert. However, the highest tsunami waves were recorded in sections of the Kamchatka coast, where the earthquake struck, according to Russia's Oceanology Institute. The mega quake struck about 84 miles off the coast at a shallow depth of 12 miles. The earthquake was the sixth largest ever recorded. Nearly 2 million people were told to evacuate in Japan and Russia's Kuril Islands in the Pacific. Hours after the shock, four giant whales washed up on a Japanese beach.


ITV News
30-07-2025
- ITV News
How do tsunami warning systems work?
The strongest earthquake in a decade hit Russia's east coast on Wednesday morning. The 8.8 magnitude quake prompted tsunami alerts across the Pacific, as waves pushed forward towards Russia, Japan, Hawaii and the United States' West Coast, as well as many other nations. Tsunamis can't be predicted. They don't occur during a specific season, they don't strike in the same place, and they don't follow any pattern that would allow scientists to estimate how strong the next one could be. They can hit any coast at any time. But they can't be prevented, and for people living in coastal communities, all they can do is prepare for if, or when, one happens. The only respite is that tsunamis don't occur often, and the majority are not destructive. What is a Tsunami? The word Tsunami is Japanese, coming from the characters for harbour ("tsu") and wave ("nami"). A tsunami is a series of extremely long waves, primarily caused by underwater earthquakes, which suddenly displace the ocean's floor. Other possible causes are landslides, volcanic activity, certain types of weather, and meteorites. Like a rock that is dropped in a puddle - tsunamis radiate outwards in all directions from the point of origin. Tsunami waves can move as fast as a jet plane, clocking in at over 500 mph. Some have enough power to cross entire ocean basins. If looking at the water's surface while far out at sea, tsunamis can go undetected. Boats may not normally notice one as it passes below them. As the waves reach shallow water near land, they slow down and grow in height - most tsunamis are less than 10 feet high, but some can reach over 100 feet. They pose an incredibly dangerous threat to coastlines, risking coastal flooding and powerful currents that can last for hours or days. The History of Tsunami Warning Systems The creation of large-scale tsunami warning systems began in the 1940s, formed separately by Japan and the US after both experienced destructive tsunamis. Japan's functioned as a local warning system, while the USA's covered more distance. In the aftermath of the 1960 Chilean earthquake and tsunami, which killed hundreds of people in total across Chile, Hawaii, Japan, and the Philippines, the nations of the Pacific decided to coordinate efforts. Most earthquakes and tsunamis occur in the Pacific Ocean, as it holds the largest ocean basin and the "Ring of Fire". The Ring of Fire is an area laden with volcanoes and sites of seismic activity, covering the edges of the Pacific Ocean. An estimated 75% of all active volcanoes are dotted along the Ring of Fire, and 90% of all earthquakes occur there. Unesco says 76% of history's fatal tsunamis have occurred in the Pacific Ocean. However, the Indian Ocean Tsunami, or the Boxing Day Tsunami, which killed 230,000 people, highlighted the need for tsunami warning systems elsewhere and changed the way they work. How do Tsunami Warning Systems Work? The first sign of a potential tsunami is usually an earthquake, which creates seismic waves. Seismic waves travel around 100 times faster than tsunamis, meaning they can be analysed far earlier than other methods. Seismic networks, a collection of stations whose job it is to measure ground movement, can provide information about an earthquake's location, depth, and magnitude. Tsunami warning centres are then able to use this information to determine whether a tsunami could have been formed, and whether it is necessary to issue a tsunami alert. If the earthquake meets certain criteria, warning centres use information from water-level networks. These monitor changes in the water using sea-floor censors and surface buoys, which can indicate the existence and size of a tsunami. Tsunami warning centres will run forecast models to simulate the tsunami's movements across the ocean and estimate its predisposition for damage, such as wave height, arrival times, location and duration. These forecasts allow warning centres to decide if a tsunami alert should be updated or cancelled. The system is not foolproof, though. If a tsunami is triggered by a non-seismic event, like a volcanic eruption or meteorite, water-level networks may not be able to create a detailed forecast with enough time, and seismic networks won't pick it up accurately. What Types of Tsunami Alerts are there? There are three levels to tsunami alerts: a tsunami watch, a tsunami advisory, and a tsunami warning. A tsunami watch is issued when a tsunami may later impact the watch area. It can be upgraded or cancelled depending on updated information. A tsunami advisory is issued when a potentially dangerous tsunami is imminent, expected or occurring. Severe flooding is not expected in areas under an advisory, but local officials may evacuate immediate coastal areas like beaches, harbours and piers. A tsunami warning is issued when a tsunami with the potential to cause widespread flooding is imminent, expected or occurring, which could be accompanied by powerful currents and continue for several hours. Officials may evacuate low-lying coastal areas and reposition ships to deep waters if there is time.