Japanese knotweed

[bettyfloormop]

Is this JK does anyone know?

Don't think so. Knotweed has the same shaped leaves but they alternate on the stem, not sprout in pairs.
If you can get to the root, a knotweed is bright orange when the root is cut too.

No, don't think so. From your picture it looks like there's several shoots coming off from the same place.

Is that right?

Thanks @WithASpider

Here is a pic of a root.. what do you think?

Another pic

If you've managed to expose the roots; it's not knotweed (it doesn't look like it anyway). Those suckers go deep.

Doesn't look like it!

@bettyfloormop

Another pic

No, that's definitely not Knotweed.

The stem zig zags and only on shoot off from each node.

Phew.. thanks chaps.

Had a mild moment of panic there! I know there is KW in our area of London, but didn't want to see it coming up under the neighbours fence! 😳

Does it have very distinctive white stubby roots? And delicate flowers on top? And can you pull the whole plant out quite easily in moist soil? I have lots of these (see pictures) and they are a bit annoying but nothing you can't deal with. Can't remember the name, will post if I do.

It looks like Houttuynia, it’s a real pain. I planted some about 8 years ago and now continually try to remove it.

Enchanters nightshade, Circaea lutetiana. Even young JK is on a larger scale than that. It’s not Houttuynia, roots are wrong. I spent yesterday morning pulling enchanters nightshade from my garden, and yesterday afternoon pulling Houttuynia from my dad’s

Yes, @MereDintofPandiculation has named what I have and what's shown in my picture, thank you. More here plus useful id pictures: images.app.goo.gl/JxF2Nn6mnovz1VqB9

OP do you think is that you have?