The Poison Garden

Do you dare to enter?

The Alnwick Garden plays host to the small but deadly Poison Garden—filled exclusively with around 100 toxic, intoxicating, and narcotic plants. The boundaries of the Poison Garden are kept behind black iron gates, only open on guided tours.

Visitors are strictly prohibited from smelling, touching, or tasting any plants, although some people still occasionally faint from inhaling toxic fumes while walking in the garden.

Entry to The Poison Garden is included with your day ticket.

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A combination of dark, ivy-covered tunnels and flame-shaped beds creates an educational garden full of interest and intrigue, where the most dangerous plants are kept within giant cages.



The Alnwick Garden Opening Hours

* Please note that the below times are for The Alnwick Garden daytime opening hours only - Halloween evening events, The Winter Light Trail and The Treehouse are all subject to individual opening hours, which can be found on the relevant pages on our website *

Please note that outside of  Northumberland school holidays we will be closed Tuesdays and Wednesdays as of 1st November 2021 – 31st March 2022 (with the exception of evenings during the light trail - please see Christmas page for further details)


1st – 28th November 2021

10:00 – 16:00 (Last Admission 15:00)

29th November 2021 – 3rd January 2022
10:00 – 15:30 (Last Admission 14:30)

CLOSED Christmas Day, Boxing Day (open Boxing Day evening for light trail)

Tuesday 4th January 2022 – Thursday 3rd February 2022
CLOSED for essential maintenance

4th February 2022 – 31st March 2022
10:00 – 16:00 (Last Admission 15:00)