Japanese knotweed is known for causing havoc in gardens across England and Wales. This aggressive invasive species spreads fast and can cause structural damage to homes and buildings. Its presence may even decrease the value of your home or discourage mortgage companies from lending to you, so it is vital that you tackle the issue properly.

What is Japanese knotweed?

Japanese knotweed is a strong and fast-spreading perennial plant. While not native to the UK, it can be found in numerous locations throughout the country. It spreads quickly due to its aggressive rhizome root system - these rhizomes can grow up to 4 metres deep, meaning they require treatment and disposal by specialist teams to remove the plant.

Japanese knotweed can look very similar to other decorative plants, so be sure to read our Japanese knotweed identification guide and learn what to look out for in your garden.

Who is responsible for removing Japanese knotweed?

In England and Wales, it is a criminal offence to encourage the growth of Japanese knotweed or allow it to spread. Clearing the weeds as soon as possible is key if you don't want to damage to your property or run into legal trouble.

If Japanese knotweed is on your property, it is your responsibility to organise its removal. The plant can be cleared via excavation or through a herbicide treatment. It is strongly recommended that you arrange this with a professional, qualified specialist, as there are many regulations governing how to dispose of Japanese knotweed.

If there is Japanese knotweed in a neighbour's garden, you should discuss this with them if possible. It is not a crime to have Japanese knotweed on your property; however, if the knotweed spreads to your land, you may be able to take legal action against your neighbour for creating a nuisance.

In 2014, a law was introduced allowing local governments to penalise people for not taking adequate steps to eradicate Japanese knotweed. Talk to your local council's environmental team, who will have the authority to encourage your neighbour to address the problem if necessary.

Read More: What to Do If Your Neighbour Has Japanese Knotweed

I'm renting a property - is it my landlord's responsibility to get rid of Japanese knotweed?

Check your contract to see whether you are responsible for the removal of Japanese knotweed. Some landlords may put clauses into contracts that agree the tenant is responsible for removing invasive plant species. They may assist you with the task due to the aggressive nature of the plant and the potential damage to their property.

Once you have figured out who needs to clear the weed, it is time to act. Taylor Total Weed Control's Japanese knotweed treatment plans are very reasonably priced, making tackling this problem easy and affordable compared to other weed removal specialists. Our team of technicians will be able to assess the extent of the damage and best advise you on how to address the issue with a free survey.

Call us today on 029 2039 7554 to arrange a free weed removal consultation, or get in touch for more help and advice on clearing Japanese knotweed.

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Japanese knotweed is an invasive plant that can cause some serious damage to your garden and property if it goes undetected. To make sure that you don't have a Japanese knotweed problem, you should check your garden regularly. Japanese knotweed starts to make its presence known during the spring months, so this is a particularly important time for you to survey your garden.

We have a whole page that will help you identify Japanese Knotweed in your garden, but if you suspect you have Japanese knotweed and find yourself asking "do I have Japanese knotweed?" Here are a few things to look out for! 

Spotting Knotweed in the Garden

When knotweed emerges in the spring, it looks like reddish-purple shoots (the thickness of asparagus). Often, as the stems develop they begin to take on a more dense, hollow appearance like bamboo. As you look along the length of the zig-zag stem you will see the iconic love-heart shaped leaves. During the warmer periods you might even see some pretty little white flowers, but don't be fooled! they're not a pretty garden feature to be enjoyed! You can see close up images of all these knotweed features over on our identification page.

There are a handful of plants that are often mistaken for Japanese knotweed, so this is worth bearing in mind too as you determine whether or not you have Japanese knotweed. 

• Bindweed
• Russian Vine
• Bamboo
• Broadleaf Dock

All of these are knotweed impersonators, so keep your eyes peeled for these as you survey your garden.

Spotting Knotweed Damage

Knotweed is a quick-growing plant and can grow up to 10cm in a single day during the height of the growing season! It's capable of causing damage to buildings and structures as it targets weak points and forces its way into foundations and up drainpipes. Within a matter of weeks, it can ravage a garden, rip its way through a brick wall or destroy a wooden fence. It usually has a vast network of underground rhizomes that shoot off smaller plants all over your garden, so if you suspect you have knotweed, it's likely it will pop up in more places than one.

What to do if you think you have knotweed?

So, if you think you've spotted this ravenous Japanese plant in your garden, don't hesitate to give us a call! We specialise in identifying, treating and eradicating Japanese knotweed. 

If you think that a neighbour has Japanese knotweed that might encroach on your property and cause damage, then we can also help you through your legal case. We offer a professional expert witness service that will help protect you and your home in the worst-case scenario. 

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So, if you are asking "do I have Japanese knotweed", we hope that this blog has helped to make things a little clearer for you and provided you with the information that you need to sort out your potential infestation! 

We all know that dogs are capable of some remarkable things, they can lead the blind, aid police officers and provide therapy for sick patients. Well, the talents of the canine don't stop there! Did you know they can also detect Japanese knotweed?

A Start-Up Company in Ireland

Helga Heylen founded her start-up company back in 2018 and has been training dogs to detect Japanese knotweed with incredible accuracy. Heylen claims that one of her sniffer dogs is able to detect the Japanese knotweed rhizomes even if they haven't broken the surface of the soil yet!

Using their powerful noses, the dogs are able to identify the exact location of a developing knotweed problem. Heylen currently has three knotweed detecting dogs working for her, one is a purebred labrador and the others are labrador-beagle crosses. 

These amazing sniffer dogs can really transform the way that Japanese knotweed is detected and treated. Rhizomes as small as a fingernail can be laid dormant under the soil for a number of years before developing into a fully-fledged knotweed nightmare! If dogs can help commercial property developers, home and business owners to quickly find and treat the problem, it could prevent a huge amount of structural damage later down the line. 

How Do These Dogs Work?

Unlike humans, dogs don't need to be able to see the knotweed to know it's there! They have a keen sense of smell that can identify rhizomes several metres under the ground. They can quickly move through over-grown terrain and don't need bright lights to work. This means they can quickly survey abandoned areas of land that humans simply couldn't access on foot. 

Doggy Danger

While these dogs might sound like miracle workers to those of you with a knotweed problem, there are some people who do not feel so positively about them. While working in Belgium, one of Heylen's dogs was given poisoned food after it detected knotweed at the site of an upcoming commercial development. The discovery of the knotweed by the talented pooch delayed the development project, which was a source of frustration for investors. 

Since then, security for the dogs has been tightened to make sure nothing like this happens again. They sleep under security cameras and are kept indoors near to the handlers. Hopefully, they can continue to carry out their work unharmed from now on! Heylen said: "You know it's a good thing when it excites like-minded people, which is certainly the majority and really scares others".

If you think you could have a Japanese knotweed problem on your hands, we can't provide sniffer dogs, but we can provide a FREE expert survey and Japanese knotweed treatment plan.

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If you have spotted Japanese knotweed on or near your property and are wondering if you need a licence to remove it – in short, no you don't.

The legal standing surrounding Japanese knotweed across the UK varies. In England and Wales, the primary legislation relating to knotweed is ‘Section 14(2) of the Wildlife and Countryside Act 1981’. In Scotland, this is still the predominant piece of legislation but in effect has been superseded by the changes which came into force with the ‘Wildlife and Natural Environment (Scotland) Act 2012’. The law surrounding the management and control of knotweed across the UK, however, is practically the same.

Japanese knotweed is categorised as an invasive species, and it is the responsibility of the owner of the land where it appears to prevent it from spreading into neighbouring properties or into the wild. The removal of Japanese knotweed must also be performed with extreme due care and attention due to the sensitivity regarding its ability to spread. Currently, there is no legal obligation to remove or treat knotweed, just as long as you’re not encouraging or allow it to grow.

Guidelines set out by the government state that anyone wanting to use chemicals to treat an infestation of knotweed must do the some or all of the following:

• Make sure anyone spraying holds a certificate of competence for herbicide use or works under the direct supervision of a certificate holder
  
  
• Carry out a Control of Substances Hazardous to Health assessment
  
  
• Get permission from Natural England if the area is protected, for example, sites of special scientific interest
  
  
• Get permission from the Environment Agency if the plants are near water

The use of pesticides and chemicals in treating Japanese knotweed is governed by ‘The Control of Pesticides Regulations 1986’ and required any person who uses a pesticide to take all reasonable precautions to protect the health of human beings, creatures and plants. Once knotweed has been treated with chemicals, it will have to be disposed of in the correct way. Off-site disposals fall under the ‘Environmental Protection Act 1990’, which states disposing of Japanese knotweed must be conducted by a licensed waste carrier as stated in ‘Waste Regulations 2011’ and disposed of within a licensed facility. Relevant transfer notes must be completed and stored. If knotweed has not been treated before off-side disposal and simply removed, then it is not classed as hazardous waste. If certain pesticides have been used, however, then the waste moves into the hazardous category requiring a consignment note as set out in the ‘Hazardous Waste Regulations 2005’.

In 2013, the UK government stated that any person that fails to control Japanese knotweed along with other invasive weed could receive an anti-social behaviour order. On-the-spot fines of £100 can also be issued, potentially rising to £2500 if prosecuted. Companies also face fines of up to £20,000 if prosecuted

Professional Knotweed Removal

It is highly recommended that, if you have Japanese knotweed on or near your property, you use experienced professionals who know what they’re doing. If not, you risk allowing the knotweed’s rhizomes spreading even further, causing not only potential increases in damage later on in time but prosecution for facilitating the spread of knotweed. So, to avoid any of these issues, be sure to get in touch with the team here at Taylor Total Weed Control! Our Japanese knotweed specialist can identify and confirm the presence of knotweed on your property and devise a relevant plan of removal to ensure it is properly eradicated. You can learn more about our knotweed removal services below.

Japanese Knotweed Removal >

If you have any questions regarding our Japanese knotweed treatment or removal, then please do not hesitate to get in touch with us today!

Japanese knotweed is one of the most - if not the most - invasive plant in Britain. As its name suggests, Japanese knotweed is native to Japan, where it is known as “itadori”. One interpretation of this name is ‘remove pain’ which alludes to the plant’s painkilling properties and use in various medicines to treat a variety of ailments ranging from cardiovascular diseases, fungal infections and skin inflammations.

Knotweed can also be found in other parts of Asia, such as China, Taiwan, and areas of Korea. In Japan, knotweed grows freely on mountainsides, volcanoes, and open spaces, which is a little different compared to the UK. In Japan, knotweed has natural predators that come in the form of invertebrates, fungi, ash deposits from volcanoes, and an erratic climate. In Britain, however, there are no natural predators to limit the spread of knotweed.

The history of Japanese knotweed is not as simple as you may think. How did it get here in the first place? Why did it spread so vigorously? And why is it such a problem today? 

In this blog post, we take a deep dive into the history of Japanese knotweed to find some answers to the many questions surrounding this pesky plant.

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