A regular client of mine planted what they think is a Gunnera plant which they obtained from a friend a couple of years ago.
Trouble is, it's like no Gunnera that I have ever seen , apart from the similarly sized 2-3ft wide leaves.
The trouble is, that one plant is now multiplying at an astonishing rate and rampaging through the borders with 10 -12ft tall stems, on top of which are basketball sized flower heads, not dissimilar to hemlock in appearance. The stems themselves are around 2" in diameter and the stems have a slight red mottling on them.
Unlike the Gunneras I have worked with before, with huge cucumber like flower heads, this plant has wide ball like heads, leading me to think it's either not a Gunnera or it's a different species to the usual plant.