Japanese knotweed removal
Eco-innovative
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Japanese knotweed

Eco-innovators in Japanese Knotweed removal  solutions. Call today to speak to our friendly team of specialists.

Japanese knotweed removal

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The problem with Japanese knotweed

Japanese knotweed (Fallopia Japonica syn. Polygonum cuspidatum) is a highly invasive non-native weed that can damage foundations and driveways, as well as putting a stop to mortgage applications and construction development plans. First introduced to the UK from Japan in the 1940s as an ornamental plant, Japanese knotweed is now widespread throughout the UK and can be found as a wayside weed and in many private properties across the country. In spring, the bamboo-like stems grow at a rapid rate, reaching up to 2 metres in height. In summer, the plant produces creamy white flowers. Don’t be fooled by its beauty, as Japanese knotweed can quickly dominate the landscape, suppressing all other growth and damaging properties. Over the winter, the above ground growth dies back but the underground rhizome root system remains alive, ready to grow again in spring.

Mortgages lenders require a Japanese knotweed management plan with an insurance backed guarantee to be in place before they will lend on properties with this prolific perennial. Knotweed has the ability to cause significant damage to tarmac, concrete, paving slabs and foundations of properties. Eradication and Japanese knotweed removal requires expertise. It is very difficult to remove by hand, because the rhizome root system extends deep into the ground. Chemical treatment methods require expert application in order to kill Japanese knotweed. There are also various legal considerations when dealing with Japanese knotweed. Private nuisance claims can be brought against a landowner who allows knotweed to spread into adjoining land. Under the provisions made within the Wildlife and Countryside Act 1981, it is an offence to cause Japanese knotweed to grow in the wild.


Why choose Environet for your Japanese knotweed removal

We pride ourselves on delivering excellent customer service to all of our clients by offering a range of Japanese knotweed removal methods for both large scale development sites and residential properties. We eradicate and kill Japanese knotweed and control the spread of the weed. All of our services are provided with insurance backed guarantees for up to 10 years underwritten by an A-rated insurer at Lloyd’s and recognised and accepted by the majority of the UK's leading banks and building societies for financial lending purposes. We've developed eco-friendly ways of removing Japanese knotweed, such as our Xtract™ method, and are continually researching ways to improve the process. We believe in eco-innovation and continue to sponsor the Schools Eco-Innovation Awards Scheme, supported by Kevin McCloud, MBE.


Latest Japanese knotweed news

Japanese knotweed and construction sites – herbicide treatment or physical removal?

It’s a question we’re often asked, and there is a very clear answer. 

If your planned works are likely to result in ground disturbance do NOT rely on herbicide alone. The entire rhizome system should be removed, because the chances are that not all of the rhizome system will be killed by herbicide, the consequence being that your groundworks will spread the knotweed around the site, and possibly off-site too.

Japanese knotweed growing in neighbours garden

5 key facts Estate Agents should know about Japanese knotweed

Finding Japanese knotweed on a property can halt a house sale.

Whilst there are various ways to get rid of this invasive perennial, if identification is left until the 11th hour of the sale, it can become a nightmare problem to deal with. There’s a legal duty on Estate Agents to disclose the presence of Japanese knotweed under CPR, so in our experience it’s best to be honest with the buyer to gain their trust which should make any transaction go through without a hitch.

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