THE POISON GARDEN website 
John Robertson with Catha edulis
(and wearing a shirt made of 55% cannabis fibre)
Though the Poison Garden website comes about because of the knowledge about poison plants I developed in order to perform my role as Poison Garden Warden at the Alnwick Garden, neither John Robertson nor this site is now in any way connected with Alnwick Garden Enterprises Ltd and/or The Alnwick Garden Trust.