Does anyone know what this is?

[Sewell61]

I've got this growing but haven't got a clue what it is. It's growing pretty quick so I think it's maybe a weed?
Any help will be much appreciated

Yes it is a weed but can't ferment for the life of me what is called.

Sorry, not very helpful :o

Remember not ferment

It's a weed, it grows in our garden (but I quite like it!)

Looks like some sort of willow herb. They're pretty weeds. Get rid before it seeds if you don't want loads, they spread very quickly.

Thought so, it's growing like billyho & the stems are growing in all directions

Could it be Himalayan balsam?

Looks very much like willowherb and yes, get rid of it before it seeds, it's a PITA when it does! Lovely fluffy seeds that float on the breeze but OMG, so many of them.

Here you are - rosebay willowherb in all its glory :)

Thank you everyone, it's been dug up & is in the green bin