What do you reckon to this 'wild flower'

But the flower's wrong for a mint.

Yes, the leaves puzzled me a bit too, merlot. They look kind of minty.

https://www.gransnet.com/uploads/talk/201709/medium-583420-p1190860.jpg https://www.gransnet.com/uploads/talk/201709/medium-739216-p1190948.jpg https://www.gransnet.com/uploads/talk/201709/medium-580920-img-2451.jpg

Pic of Great Willowherb I took in Derbyshire early August and a couple more of H.balsam

The leaves are wrong for willow herb.

Definitely not Himalayan Balsam

There are quite a few different species of willowherb so I think you might be right on that. Will check my books.

It's not Himalayan Balsam. That looks like this (in the shade but they grow in full sunshine too. Bees love the flowers so I'm not so opposed to it as Imight be otherwise.

Anyhow, biologically speaking all species have been invasive at some point in their evolution so what's new? We worry too much sometimes.

Oh dear I think this may be the dreaded Himalayan Balsam that is is spreading like wildfire throughout the countryside and choking native plants. Get rid of it now or it will take ver your garden. I would post a link if I knew how but if you Google you will see some clear photos.

Forgot the pic ?