Knowledge Hub

Whether you’re a homeowner, a property professional or work in construction, our Knowledge Hub contains everything you need to know about invasive plants, all in one handy location

Some useful information to explore



Japanese Knotweed UK Heatmap

Exposed™: The Japanese Knotweed Heatmap is an interactive online heatmap of Japanese knotweed sightings across the UK.
Mortgage paperwork with some keys and a pen

A Guide to Mortgages and Japanese Knotweed

Understand how the presence of Japanese knotweed could affect your mortgage.
Insurance button on keyboard

Japanese Knotweed Insurance Guide

Making sure you have the right protection against the costs associated with the discovery of Japanese knotweed.

read our latest news


Jk in neighbour's garden blog banner
October 18, 2023
3 minutes read

How to deal with Japanese knotweed in your neighbour’s garden 

Japanese Knotweed is a notorious invasive plant that can cause significant damage to properties and biodiversity in the UK.
Harm to people blog banner
October 11, 2023
2 minutes read

Is Japanese knotweed harmful to people? 

Japanese Knotweed, a perennial plant native to East Asia, with attractive, bamboo-like stems and shield-like leaves, can be found all over the UK.
Close up on Bamboo damage
September 28, 2023
3 minutes read

Running bamboo vs clumping bamboo, should you even bother?

In the United Kingdom, bamboo has rapidly become a popular choice for gardeners and landscapers alike due to its unique aesthetic appeal and ability to bring instant impact to a garden design.
Dan excavation
September 21, 2023
3 minutes read

How to choose a Japanese knotweed removal company 

If you have identified Japanese knotweed on your property, it's essential to address the issue promptly to prevent its spread and potential damage.
February 25, 2019
2 minutes read

Find out how close Japanese knotweed is to your home

RICS Knotweed Myth Buster
February 17, 2022
4 minutes read

Misinterpretation of new RICS knotweed guidance note causes confusion

February 22, 2021
2 minutes read

Detection dogs get on the case for Peak District homebuyer

September 17, 2020
2 minutes read

Rare Bohemian knotweed found in Buckinghamshire garden

educational training

Webinars and seminars

Photo of a Seminar led by Nic Seal
March 10, 2023
3 minutes read

Webinars and Seminars

Webinar advert
March 21, 2023
1 minute read

‘How does Japanese knotweed affect property sales’

This morning, our Managing Director and Founder, Nic Seal, guest presented a webinar for leading conveyancing body, Searches UK. Nic presented the webinar ‘How does Japanese knotweed affect property sales’ to over 170 registrants.
Webinar advertisement
March 21, 2023
1 minute read

“How to identify invasive plants and understand the risk they present”

Last week, we were thrilled to have one of our directors, Emily Grant, present to an audience of knowledgeable property professionals, including chartered surveyors and property developers, her latest webinar, ‘How to identify invasive plants and understand the risks they present’ which took place, with limited capacity on Tuesday 14th March,10am.

expert research


There’s a lot of misleading information about Japanese knotweed, and other invasive plants, so we thought we’d share our knowledge and expertise. Our articles are designed to provide impartial honest information, written by experts, to make you better informed.

bamboo encroachment
July 5, 2023
1 minute read

Understanding the risks of invasive plant encroachment

Legal cases involving invasive plant encroachment are on the rise! In this paper we highlight the importance of understanding the risks of invasive plant encroachment, as well as the potential legal implications that could arise as a result.
TA6 form on a desk with a laptop and cup of coffee
March 7, 2023
1 minute read

The TA6 Form:Understanding and mitigating knotweed risk

The Law Society’s amendment to the Explanatory Notes accompanying the TA6 conveyancing form changed in 2020. In order for a seller to tick “No” to the Japanese knotweed question, they must be certain that no rhizome (root) is present in the ground of the property, or within 3 metres of the boundary, even if there are no visible signs above ground.
Invasive plant out of control growth
January 10, 2023
1 minute read

The invasive plants posing the greatest threat to property

When it comes to property, certain invasive plants are more problematic than others. We highlight the main ones to watch out for, the risks they can pose and explain how best to treat them.
Brownfield development site
October 22, 2022
1 minute read

Land Remediation Tax Relief can generate significant savings for developers of brownfield sites contaminated with Japanese knotweed. We explain how.

Introduced in 2001, Land Remediation Tax Relief (LRTR) is designed to encourage the redevelopment of more challenging brownfield sites by assisting developers with the cost of dealing with contamination such as asbestos, radon and – since 2009 - Japanese knotweed.

Start fixing your invasive plant problem today by requesting a survey

Rest assured, where invasive species are identified at an early stage and tackled correctly, problems can usually be avoided. Our trained specialists carry out site surveys to map specified terrestrial invasive plant species and provide management plans tailored to your requirements. ​


Our team of experts is available between 9am and 5:30pm, Monday to Friday to answer your enquiries and advise you on the next steps

Want a survey?

Request a survey online in less than two minutes by simply uploading a photograph and providing a few brief details. A member of the team will swiftly come back to you with further information and our availability.

Need quick plant identification?

There’s no need to wait for a survey. Simply upload an image to our identification form and one of our invasive plant experts will take a look and let you know, free of charge.

Contact our team of experts today