Have you a photo of the leaves?

Preferably with the photos in the right orientation please

You asked about this plant the other day, Harrypotter. A look at the leaves would be helpful, but I still think that it is figwort. Whether you regard it as a weed or a wild flower is down to you - it's all a matter of opinion.

It's not a plant you'll find on sale at your local garden centre, but it isn't horribly invasive or difficult to get rid of if you've got enough of it, so it's not a problem plant.

Keep it or dig it up - it's up to you. I had it in my last garden which was a very large semi-wild woodland. It would be OK to leave it in your bog garden if that's what you decide to do.