How to Tame the Japanese Knotweed Beast This Summer

It’s peak growing season all across the UK and the prolonged heatwave has given all sorts of plants — and weeds — renewed vigour, as long as they get the vital water they need to grow. Japanese knotweed is among the hardiest of (unwanted) plants and has been springing up and spreading its menacing roots across estate agents’ properties since spring belatedly sprung this year.

Simply ignoring the problem is not a solution. There are real risks with Japanese knotweed, both to the property and for the owner. These include the weed’s potential for causing structural damage as it grows through cracks in walls, as well as other issues, and potential legal problems if it spreads onto neighbouring properties. It can also make a house impossible to sell, as buyers are unlikely to get a mortgage due to the presence of the weed on the property.

Dealing with Japanese knotweed when it springs up during a tenancy may not be an estate agent’s responsibility, however. It will depend on the tenancy agreement and some tenants have been shocked to discover that not only is Japanese knotweed growing in their garden — and rapidly at that — but that it’s up to them to get rid of it. Trying to do it on your own, though, is an almost impossible task.

Identifying a Japanese Knotweed Problem

Trying to figure out if you have Japanese knotweed growing somewhere on your property can be a perplexing problem and it turns out that not many people even know what it looks like. A new survey by Japanese knotweed removal firm Environet found that only 19% of those questioned could properly identify this scourge of a weed. The survey asked respondents to pick Japanese knotweed from five photographs of different plants — 81% were unable to.

“Most people have heard of Japanese knotweed, but the fact that only 19% of people in the UK can identify it from other common plants, such as bindweed and ivy, is very concerning,” said Environet managing director Nic Seal. “It’s not just about protecting one’s property from damage and decreased value; it is also about protecting oneself from the risk of being sued if the knotweed is allowed to spread.”

The clue as to whether or not you have Japanese knotweed on your property is in how it starts growing — shoots will appear and they will be reddish in colour, somewhat resembling those of bamboo. When leaves appear, they will be heart-shaped and the plant will grow incredibly quickly — up to 20cm in a day — quickly overwhelming everything in the surrounding area. The plant flowers in the late summer and the blooms will be a sort of off-white.

Japanese Knotweed Removal

For estate agents managing properties and with others up for sale, it’s almost always a futile task to try and eradicate Japanese knotweed from an infected site. The large and deep root system will ensure that, even if everything above ground is cut down, it will soon send up new shoots to take its place and the problem starts all over again.

So if you’re searching for the most effective Japanese knotweed removal solutions, there’s really only one thing you need to know: you have to enlist a professional Japanese knotweed removal firm. The investment in such services is vastly offset by the potential for damage to a building, as well as a drastic lowering of its value.

It’s likely you will need an insurance-backed guarantee of the removal of Japanese knotweed, for sale or mortgage purposes, and a good Japanese knotweed removal firm will typically be able to provide one for five years, often extendable up to 10. That’s your knotty Japanese knotweed problem killed off.

EAN Content

Content shared by this account is either news shared free by third parties or sponsored (paid for) content from third parties. Please be advised that links to third party websites are not endorsed by Estate Agent Networking - Please do your own research before committing to any third party business promoted on our website. As an Amazon Associate, I earn from qualifying purchases.

You May Also Enjoy

Breaking News

Solutions to fix construction skills

The Centre for Social Justice (CSJ) has released a report titled, ‘Skills to Build: Fixing Britain’s construction workforce crisis.’ After speaking to several organizations and having roundtables to garner a wide understanding of the sectors’ perspectives and needs, they have proposed twenty six recommendations that will fix the issues underpinning the skills crisis. Richard Beresford,…
Read More
Breaking News

Budget Commentary – Mansion Tax, Business Rates & Planning Reform

Andrew Teacher, Co-founder at LauderTeacher, one of the UK’s leading advisors on real estate communications, investor relations and a former spokesman for the BPF, comments on the potential Budget. Mansion tax “Nobody likes paying tax, but the reality is a council tax revaluation is long overdue. Rather than distorting the market, which is what a…
Read More
Rightmove logo
Breaking News

Budget 2025 market data & home-mover and agent insight

Speculation about property tax changes is fuelling uncertainty across much of the market Rightmove research found that home-movers would favour staggered stamp duty payments, while a poll of estate agents also suggested that staggered payments would be a preferable change to shifting payment to the seller Rightmove data on rumoured property tax changes Mansion Tax…
Read More
Breaking News

Breaking Property News 24/11/25

Daily bite-sized proptech and property news in partnership with Proptech-X. Symple resolves four core issues in the new Renter’s Rights Act Automating compliance in the new PRS landscape   The Renters’ Rights Act has raised the bar for private landlords in England in terms of property condition, hazard resolution, evidence of compliance and regulatory registration. Symple…
Read More
Breaking News

What does Rachel Reeves have in store for the UK property market?

With the Autumn Budget now just days away, speculation is mounting that the Chancellor, Rachel Reeves, will use property taxation as a central tool to address the widely reported fiscal shortfall of between £20bn and £40bn. As a result, the housing market has entered a period of caution, with asking prices falling 1.8 percent in…
Read More
Letting Agent Talk

Why Property Guarantors Need Legal Advice Before Signing

When it comes to property deals, it’s natural to look for additional support, especially when you’re not fully confident about meeting the terms of the agreement. This is where a guarantor comes into play, as they step in to give the property owner some assurance. The idea of helping someone you trust can feel quite…
Read More