Experience the thrill of killer US genetics 'Gorilla Glue and Zkittlez' expertly wrapped up into an astonishing autoflower 20% THC package by the team at Barneys Farm Lab. Beware of sensory overload though, the medical effects of GORILLA ZKITTLEZ AUTO™ can be quite an exhilarating experience. Gender Feminised. Gorilla Zkittlez strain is a powerful Indica-dominant 60/40 hybrid strain, which accurately suits its lineage. It is a result of breeding between famous Original Glue, which is also known as Gorilla Glue #4, and another award-winning strain Zkittlez. It is the work of an international breeder Barney's Farm.