Heracleum mantegazzianum

A plant that was popular with the Victorians and which certainly delivers high drama. It is now relegated to the 'bad boys' list and is occasionally seen growing in the wild where it has become an escapee. (It comes from the Caucasus.) Its problem is that contact with the foliage when there is sunshine can result in severe skin reactions that may leave permanent marks. The plant itself can reach 4 metres in height with huge dramatic leaves that are jaggedly lobed. At the top a magnificent head of domed white flowers, likened to the appearance of cow parsley on steroids. Admire but don't touch. It should not be possible to buy this plant.