The Poison Garden is located in Alnwick, England.It is home to more than 100 poisonous plants, including some that cause dizziness or sedation if eaten.However, it is an open park that can be visited by the public.The sign on the black metal gate says, "This plant can kill", with the words engraved on the sides with a picture of a skeleton (crossed head and bones) to give an idea of ​​its danger.The warning is no joke - those black metal gates are the fences of the world's deadliest garden.The Poison Garden was founded in 2005."Before visitors are allowed to enter, they must be given a safety briefing," said Dean Smith, a guide at the Poison Garden.Visitors are instructed not to touch, taste or smell the plants - however, according to the park's website, there are people who have fainted while walking through the park from the poisonous breath they took in the air.One of the dangerous trees planted there is one called monkshood, which contains a nerve-damaging poison, which is dangerous for the country's work.But that is not the most dangerous tree that grows there."Probably the most dangerous plant here is the poisonous plant called ricin, which is like a bean and has an oil," said Smith.The Book of Wonders of the World has identified this plant as the most poisonous plant in the world.Surprisingly, many of the things that grow in the garden are normal."Many grow wild in the UK and most plants are very easy to grow," says Smith.The leaves of some plants contain what is known as 'grayanotoxin' which can attack the nervous system of the person who eats it."Although you're unlikely to eat the leaves, because they taste like a double-edged sword," Smith said confidently.Among these plants is the laburnum tree, which is the second most poisonous plant in the UK (only the yew tree is more dangerous).Many people have it around their homes because of its beautiful yellow flowers, but it contains a poison called 'cytisine'."The tree is so poisonous," said Smith, "if one of its branches falls to the ground, and a few months later it gets picked up by a passing dog, that dog will not complete the walk. That's the level of danger.Plants don't release their poison to people and dogs, they can poison the soil - leaving the only thing that can grow is other poisonous plants.Some herbs should not be eaten, touched, smelled or turned into psychoactive drugs and can kill you.There is one tree in the garden that can kill you even if you cut a part of it.The roots of some plants contain a toxin capable of stopping your heart, and the sap has severe skin irritation.So one should always wear gloves, and Smith cautions against removing the gloves by the teeth.Farm workers take a variety of safety measures, according to Robert Ternent, farm crew chief."It is up to us to learn how to use them, because many of these plants are used effectively.It's not all bad," said gardener Amy Thorp.On the other hand, if we look at it, some of the poisonous plants in the garden are used as medicine, such as 'yew' which is used to treat breast cancer.Also 'periwinkle' if properly processed, useful medicines are produced.The garden is part of a drug education project according to Claire Mitchell, head of community and education.There are three types of plants in the garden that are recognized as drugs in the UK.The first type of drug is called opium poppies, the second is hashish, and the third is khat.© 2022 BBC.The BBC is not responsible for the content of other external websites.Read information about how we access external sites.