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Free Japanese knotweed identification
Japanese knotweed can be difficult to identify as it changes in appearance through the year – and can take on dramatically different characteristics if it has been treated. If you think you’ve spotted knotweed, it’s important to have it verified by an expert before taking any action.
Quick facts
- Knotweed is visible above ground from early spring to late autumn.
- It varies in appearance depending on the season.
- Research shows only 12% of people in the UK can correctly identify it.
- It can grow anywhere and affects around 5% of UK properties.
Free identification service
Worried about Japanese knotweed invading your property? Or perhaps you are viewing a property and have found something suspicious. Our FREE identification service offers peace of mind with just a quick snapshot. Simply upload a photo, and our experts will swiftly confirm whether it’s the notorious plant. No fees, no hassle—just clarity. We believe everyone deserves to know if their property is at risk. If it is knotweed, don’t panic, we’ll be right there to guide you through the next steps.
Instead of charging, we invite users to donate to one of our selected charities through JustGiving, empowering them to make a difference. Since starting the service, our customers have raised an amazing £5,000 and counting for various causes.
Buying or selling property? Our JustCheck™ survey can help
Buying and selling property is one of the most stressful things we have to do in our lives. Whenever you sell a property, you must complete the Law Society’s Property Information Form (TA6) which asks you to declare whether the property, or land immediately adjacent to it, is affected by Japanese knotweed. This is no straightforward task. That’s why we developed JustCheck™. A bespoke solution to reassure both buyers and sellers that they have the information they need to proceed with confidence.
Our chosen charities
Thank you for using our Free Identification service. If you’d like to donate to one of our chosen charities, please read about them below and simply click the corresponding purple button! Donating through JustGiving is simple, fast and totally secure. Your details are safe with JustGiving – they’ll never sell them on or send unwanted emails. Once you donate, they’ll send your money directly to the charity. So it’s the most efficient way to donate – saving time and cutting costs for the charity.
The Bumblebee Conservation Trust
Bumblebees are in decline because of a loss of their habitats. Our landscape is changing, over 97% of the UK’s grasslands have been lost in the past 70 years. The Bumblebee Conservation Trust work to put much-needed flowers back into the countryside to benefit our bumblebees and other wildlife.
Trees for Cities
Trees for Cities gets stuck in with local communities to cultivate lasting change in their neighbourhoods – whether it’s revitalising forgotten spaces, creating healthier environments or getting people excited about growing, foraging, and eating healthy food.
The Woodland Trust
The Woodland Trust is the UK’s leading woodland conservation charity that creates, protects and cares for woodland across the UK. We are working hard to create a UK rich in native woods and trees, for people and wildlife.
British Heart Foundation
Heart and circulatory diseases are the world’s biggest killers. That’s why the British Heart Foundation exists. By funding research, they help find treatments and cures that could save lives. With your donations and the awe-inspiring science they fund, BHF makes science fiction a reality.
RNLI – Royal National Lifeboat Institution
RNLI volunteer lifeboat crews provide a 24-hour search and rescue service all around the UK and Ireland, while lifeguards keep a careful watch on the UK’s busiest beaches. RNLI lifesaving and drowning prevention depend on supporter fundraising and the generous donations that you and others give.
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What our clients say
Reviews
Fast, friendly, excellent charitable donation scheme
by Casey Rand
“Contacted this company with a photo to ask if a weed was Japanese knotweed. Fabulous ethos. They do not charge for identification services. Should I ever need any knotweed removal I would be happy to use such a company with conscience like this and a friendly service!”
Lovely company
by Jessie Cooper
“Lovely company. I am buying a flat in a high risk japanese knotweed area and spotted some suspicious looking shoots in the garden. Emailed photos to Environet who responded super speedily to reassure me it wasn’t knotweed. They asked for a donation to one of their justgiving charities instead of charging”
Excellent service
by Stephanie
“Following suspected JKW in my newly purchased property I contacted Environet and provided their expert with photographs. In less than an hour I received a response letting me know that it was not JKW and provided the correct identification of said plant..”
Fantastic identification service!
by Victoria Mundy
“Prompt and helpful advice on our identification query“
Great service and speedy response
by Maggie, September 2024
Thanks so much for the expert in Environet UK as they are so experience with swift response to my enquires. They are professional in the reviewing Japanese knotweed and very detailed information in their website.
Thank you!
Chris, June 2025
Thank you to Scott and the team for the excellent job they have undertaken for us. We are really pleased with the work undertaken, the efficiency of the service, and how tidy they left our property.
GET IN TOUCH
Contact us
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.
