Behind the locked gates of the Poison Garden, guides share tales of deadly plants. Myths and legends are uncovered, along with facts from science and history.

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Intoxicating inhabitants

There are over 100 plants of varying deadliness grown in the Poison Garden. Some of the plants are beautiful despite being deadly, and other look so harmless it is hard to imagine their dangerous, even fatal, qualities.

Nux vomica's Latin name implies much, but it perhaps rings more bells as strychnine. Interestingly, hemlock, a poison in its own right, can be used as an antidote to Strychnine, but don't tell Socrates, who was sent to his death with a cup of hemlock.

Those of a certain age will be familiar with Castor Oil, which is made from the plant Ricinus communis, but a single seed from the same plant will kill an adult in the most horrible way. Ricin causes nausea, severe vomiting, convulsions and subsequent disintegration of the kidneys, liver and spleen...