Japanese knotweed

Weedkiller won't get rid of it. You have to get it removed properly I'm afraid.

Hi Grammaretto. I see there is good advice via Google regarding Japanese knotweed. You have an expensive problem I'm afraid.

Don't pretend you don't know it's there. That could come back to haunt you. As Aldom recommends, look on Google. Cheaper than a survey which would probably tell you the same thing anyway.

We had it and, despite it being next door's weed, not ours, and being at the far end of the garden and despite the fact that the next door neighbour was paying for a specialist firm to destroy it and it was on the sales declaration form, we lost £80,000 on the sale of the house. Scientific studies have shown that (a) the leaves are edible and (b) it is not as pernicious as it is made out to be (please don't ask when \I read it, as it was several years ago in the DT)!

The commercial firms will not only destroy the weed but all surrounding vegetation. You need to really find the source - it could be someone else's issue. If there is only a small amount, one way of dealing with a local infestation is to cut through the hollow stems and inject them with a powerful, concentrated weedkiller. It worked for me!

A friend had some in her garden that had not been declared by the sellers.
She stupidly cut it all back so then had to wait for it to grow again to kill it, her parents are farmers so they used an industrial killer on it, it did work but took a couple of years.

There may be some JKW experts in your area that could help.

I think I am right in saying that lenders won’t touch a property with JKW.

Usually Scottish Home Reports carry a disclaimer saying the the property has not been checked for JKW (Hone Reports are riddled with disclaimers).
There is however a legal requirement on the property owner to declare that a property has JKW if the owner is aware. The onus is then on the owner to have a survey and eradication plan in place, which the owner will be responsible for paying for, alternatively a potential purchaser can make a reduced offer to take into account dealing with the Knotweed.

If you mean the leaves right in the middle of the wild garlic patch, that does not look like JK to me/ JK/s leaves do not have a serrated or uneven edge, their edges are very smooth and even..

are you sure you're not confusing it with gunnera?

Thanks for your replies. It's true that I haven't had it surveyed and last year's home report said no JKW was noticed.
However a knowledgeable ecologist friend has identified it and knowing that I will get it professionally seen.

I am horrified that you lost £80k dalrymple

I agree with others - it does not look like JKW.

https://www.gransnet.com/uploads/talk/202604/medium-3wx805-first-appearance-of-japanese-knotweed-v0-1vfl76iekf0f1.jpeg https://www.gransnet.com/uploads/talk/202604/medium-b2djfg-japanese-knotweed-depositphotos.jpg

Whitewavemark2

I agree with others - it does not look like JKW.

I'm not an expert but I agree.
A Google lens search did not suggest either the plant was Japanese Knotweed.

Here is Japanese Knotweed.

Either plant

Could it be Monk's Rhubarb?

I watched a program on this French chemist who has found a very good use for the dreaded weed.

news.cnrs.fr/articles/claude-grison-bio-inspired-green-chemist

Could be a variety of Persicaria.

A photo of Persicaria amplexicaulis.

Sorry photo won’t load, but look it up.

I've tried to load a photo of Monk's Rhubarb (Rumex Alpinus) but it won't post.

Doesn't look like Japanese Knotweed to me either. Can you cut a leaf off and post another picture?

Fingers crossed Grammaretto that several posters might be right and it isn't Japanese Knotweed. That would be a weight off your mind. There must be some images on Google to help to identify it. Good luck.

Unfurling JKW doesn't look like the smooth leaves of the mature plant.

Your friend gave you poor advice, as others say, you will need to go down the official route starting with an identification by experts. It may well not be knotweed but Marzipan is correct

I have my fingers crossed for you

petra

I watched a program on this French chemist who has found a very good use for the dreaded weed.

news.cnrs.fr/articles/claude-grison-bio-inspired-green-chemist

Thanks for that, petra. It's very interesting and hopeful.

This link shows the early stages of JKW

japaneseknotweed.co.uk/early-signs-of-japanese-knotweed/

It can be eaten at this stage ...