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


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February 21, 2024
4 minutes read

Blossoming Invaders: Spring’s unwelcome guests on the UK scene 

We will list some of the biggest threats to look out for this Spring and give you some tips on how to identify them.
A close up of Japanese knotweed in Winter
January 29, 2024
3 minutes read

Everything you need to know about Japanese knotweed dormancy

Plant dormancy is when a plant slows down its activity in response to tough conditions. This helps it save energy and survive challenges like cold weather or lack of water. Different types of dormancy exist, like winter dormancy when trees lose leaves, and summer dormancy when plants in dry areas slow down.
Giant Hogweed with white flowers
January 11, 2024
5 minutes read

The growing challenge of invasive, non-native plants in the UK

There are estimated to be approximately 2000 invasive non-native species (INNS) in the UK today, a list that grows by at least 10 new species every year.
December 23, 2023
1 minute read

Our Founder, Nic Seal reflects on 2023

Environet founder, Nic Seal, runs through key highlights and news throughout 2023, in our latest business update.
February 25, 2019
2 minutes read

Find out how close Japanese knotweed is to your home

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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.
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September 20, 2023
2 minutes read

4 Japanese knotweed recipes that might be worth a try!

Despite Japanese knotweed being an invasive plant species notorious for its aggressive growth, the plant has recently been used more and more in many culinary creations.
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.

educational training

Webinars and seminars

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

Webinars and Seminars

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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.
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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

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