What is this plant?

[BarrowInFurnessRailwayStation]

I've tried to identify it on my plant ID app, but it's not managing.

We grew onions in this container last year, but they were all picked.

Whatever it is it's doing really well 🤦‍♀️

Triffid.

Run.

No, it's not a triffid, it's friendly enough 😄

It's not spinach is it? (IANAG)

Comfrey?

Looks like basil, but you'd be able to smell that straight away I reckon. Or spinach - less noticeable smell though. And I don't think either of these would necessarily self-seed if you hadn't had a good amount of them hanging around in the garden last summer...

I think it looks like perpetual spinach..

I chewed a leaf and it had no particular flavour or smell.

Looks like some kind of lettuce. Lambs lettuce or something.

Perpetual spinach seems to have shinier leaves when I've googled.

Borage?

Its Japanese Knotweed

Free lettuce! 😃 it does look edible.

It's not knotweed 😆

We have borage in the front garden 🤔

Plantain. Probably a narrowleaf.

Borage and comfrey are generally 'hairier'. Sorry, don't have any suggestions as to what it is though!

It does look like plantain, but I thought the leaves were narrower and a darker green.

flora.upol.cz/fotogalerie/info/7790-Plantago-media/4.html

That’s translates to plantain

?

It has different veins in the leaf that those plantain photos on the link.

Does it do anything? Flower?

My plant app has white campion as tetop suggestion

You'd not want to chew borage or comfrey as the leaves are quite spiky.

I'd go with plantain as well. It gets everywhere.

Not plantain. Definitely looks salady!

Can you remember anything else growing nearby that would have spread seeds?