Hidden behind the Castle battlements, you will find the new poison garden, which you must enter at your own risk. In this garden, the plants are so dangerous and toxic that they may be kept in large cage like structures. This part of the grounds contrasts largely with the bright green scenes that greet you everywhere else in the grounds.
It contains a collection of poisonous plants from all over the world including Wolfsbane, Mandrake, Ricin, Opium and Cannabis. Many of these are labelled with information about their toxicity and traditional and modern uses. A large number of plants that we now know to be toxic were once used widely as herbal remedies for all sorts of ailments.
The old expression "It will either kill you or cure you" could not have been more apt!