I thought it was a sprig of Knotweed. I can tell you this, they don't like the substance, which is currently oozing through their letterbox!
Under normal circumstances, nor would I. That having been said, they have been asking for it for a long time. For example, only last week, they...
I've been having a few problems with my neighbour and I planted this in their garden with a view to causing significant damage to their house....
I was rather hoping that it was Japanese Knotweed. Is there any chance that it might be?
Could anyone please identify this plant for me, I would really like to be sure regarding exactly what it is. [ATTACH] Thank you.