What is this growing out of my lawn - worried it's Japanese knotweed

[LadyLuna16]

Hi,
I have tried to post this three times, but it's not letting me so will try to add photo to next message.

I have something growing out of my lawn and I don't know what it is. It has a woody root system and seems to be getting worse.

Can anyone identify it for me as I am a little worried.

Thanks

Another photo

I'm no expert but it doesn't look like JK to me - the edges of the leaves are slightly notched whereas JK leaf edges are smooth, and JK has a reddish stem, this doesn't. I don't know what it is though, sorry.

Hmm.... doesn't look like JKW to me, have you got nettles? Could be dock if so.

Has it got red stems?

Has it got a tap root? One long thick stem with whisky little thin ones coming off it?

nope, stems are not red. phew.

Whispy, even! 🙄

That isn’t Japanese Knotweed. Not sure what it is though, looks almost like a hydrangea.

Not knot weed. Have you got other trees and bushes around? It looks like a something that will be a cherry or philadelphus, possibly sprouting from and exposed/damaged larger root.

Looks like a hydrangea to me too. A google suggests it may be a perilla?

Oh thank you for replying!

Phew! It is really all over the lawn.

I have just dug some more up and here is the root and some sprouts.

You got a sudden rash of replies from gardeners, OP, because there's shed loads of people here today for Teamnewt#

(A shed load of gardeners - new collective noun!)

www.mumsnet.com/Talk/gardening/3622681-Help-please-I-want-to-fill-in-my-pond-for-my-daughters-safety-but-government-says-no

Is there a large version of that plant nearby? It looks like runners from something else popping up.

Dock leaves?

I also thought Hydrangea. Perhaps a big one got cut down and lots of roots left behind.

@onalongsabbatical I saw the other thread had loads of messages and was wondering when someone would reply to me

Thanks for replies everyone. I will ask my mum as she is pretty good at this stuff as well.

We have a lot of rose bushes and wondered if it was that, but not sure the leaves are right.

God it’s root is horrific
I’ve no idea what it is but excited to find out

Hmm... not ground elder either- although it looks like it is spreading like that bloody does 🙄

You could ask a neighbour- if you have it, they likely have, or had, it!

My mum said mint. It's not mint.

Root is really awful. Just tried to dig up another bit and couldn't even get to the root it's so deep.

'Tis a mystery - how will we ever solve it?

There is nothing like it in the garden. Will check with neighbour.

are there trees nearby?
could be suckers from it.

Sucker from a nearby tree. Cherries are the usual culprits.

We have a plum tree and a willow tree.

I bet it’s the plum - are the leaves similar?

I was just about to say damson when I saw the picture, but I bet it is from your plum. They have put a lot of suckers out this year.