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


Close up on Bamboo damage
June 10, 2024
3 minutes read

Everything you should know about bamboo spread

Bamboo can be an attractive addition to gardens, but its invasive nature often leads to significant issues. If not properly managed, bamboo can spread aggressively, causing damage, and creating long-term problems.
May 14, 2024
3 minutes read

How to successfully sell a property this spring

With Easter behind us, and summer on the horizon, now is the time when sellers come out of their winter hibernation and put their homes up for sale, hoping to capitalise on what is traditionally a busy period for the housing market.
Nic seal, founder of Environet
May 7, 2024
2 minutes read

Our EOT Succession Story

To all our customers, I set up Environet in 1996 as an environmental consultancy; little did I know it would morph into the successful knotweed and invasive plant company it has become, employing some 30 people.
bamboo spreading into neighbouring land
April 19, 2024
3 minutes read

Why DIY methods like diesel, vinegar, and bleach won’t manage to kill bamboo and what to do instead

February 22, 2021
2 minutes read

Detection dogs get on the case for Peak District homebuyer

RICS Knotweed Myth Buster
February 17, 2022
4 minutes read

Misinterpretation of new RICS knotweed guidance note causes confusion

June 24, 2019
2 minutes read

Who you gonna call when Knotweed starts to spread?

Close up on Cotoneaster
April 2, 2024
2 minutes read

Are cotoneaster berries poisonous?

Originally native to China, Cotoneaster is renowned for its ornamental beauty, with its glossy foliage and vibrant berries adding a touch of elegance to gardens and landscapes.

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.

Beacon 2024 Q1 Blog Banner
February 19, 2024
1 minute read

Herbicide treatment of knotweed can store up problems on site

In this edition, we focus on the use of herbicide as a control for Japanese knotweed on development sites. Our feature explores the potential pitfalls of opting for herbicide treatment as a low-cost control method.
Beacon Q4 blog banner
November 9, 2023
1 minute read

Is bamboo the next Japanese knotweed?

We discuss the increasing threat posed by bamboo, looking at how it impacts property, from physical damage to neighbour disputes.
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.

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 specialist consultants complete thorough surveys to identify the extent of the problem. Our plans aren’t one-size-fits-all; they’re customised to tackle the invasive species at your property effectively, taking account of all of 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?

If you already know you have an invasive plant problem, you can request a survey online in less than two minutes by 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?

Simply upload a few images of your problem plant to our identification form and one of our invasive plant experts will take a look and let you know, free of charge what you are dealing with. We’ll also be there to help with next steps where necessary. 

Contact our team of experts today