As part of new season, Kew Gardens has invited visitors to come and explore mind-altering plants and fungi ad sample, unusual plants.

The Royal Botanic Gardens will host many activities, workshops, debates and tours with an aim to highlight as to how powerful plant substances can be.

The workshops will be carried out from September 20 to October 13. Architectural foodsmiths Bombas & Parr will organize a workshop, called the Plant Connoissuers' Club. In the workshop, the visitors will be given a chance to explore an unusual plant.

The participants who will attend the workshop will be required to sign a disclaimer, which confirms that they have thoroughly gone through the medical guidelines with regard to the tester and have understood the same.

"Adventurous types can also seek spiritual enlightenment with our Grand Master host, by directly sampling a small amount of one of four plant-products that are widely consumed on a global basis, but which we're less familiar with in the UK", affirmed Bombas & Parr.

The four products include betel nut, kola nut, raw guarana and blue lotus tea. These products have different psychoactive, mind-altering properties and are being used by people for such a long time.

The Kew Gardens' Intoxication Season will also have sessions by scientists explaining the plants' roles as intoxicants and medicines. Also, there will be exhibitions of fungus and plants such as cannabis and tours in which mind-altering substances will be shown. History of drugs will also be explained, including magic mushrooms and alcohol, cannabis.

Kew's website unveiled that guest speakers include former government advisor Professor David Nutt. Kew, which was founded in 1840, hosts the world's largest collection of living plants. In 2003, the gardens were included in the UNESCO list of World Heritage Sites.