Holy Grail 60% I X Fire OG 70% I Fire OG 70% I OG Kush X San Fernando Valley OG Kush F3, Known for being one of the strongest of the OG strains, Fire OG has a strong scent similar to Lemon Pledge and an effect that can last up to 3 hours. With parents of OG Kush and San Fernando Valley OG Kush F3, the THC can be up to 20% with a CBD of 0.36%. The plant has frost covered nuggets with red hairs, giving the appearance that it is on fire--where the name Fire OG comes from. Holy Grail Kush 60% I OG #18 X Kosher Kush This strong indica-dominant hybrid, which has a sativa/indica ratio of 40:60, packs THC levels of as much as 24%, one of the most potent options on the medical market. That power makes Holy Grail Kush a good choice for treating a wide range of conditions, including anxiety, cramps, nausea, nerve pain, and chronic bodily pain. The body high, which is both relaxing and euphoric, is a sure ticket to a good night's sleep This strain has a distinct coffee flavor with notes of lemon and lime while the smell is earthy and woody with hints of pine needles.