Sour Diesel, sometimes abbreviated as Sour D, is an extremely popular strain, distinguished by the fuel-like chemical smell of its flowers. It has a mostly sativa head high with some subtle physical indica relaxation, making it popular among recreational and medical users alike. This is a potent strain, with a THC content that had been measured at between 20% and 25%.
Because the underground cannabis market of the 1980s and 90s operated without any kind of lasting documentation, the exact origins of Sour Diesel are not known. Although a definitive agreement on its original genetic makeup doesn’t exist, Sour Diesel’s popularity has made it the subject of much speculation. Some believe that true Sour Diesel was derived as a distinct phenotype of an original strain simply named Diesel. Others say that it was a phenotype of Chemdawg that leaned more sativa than indica. Still others claim that it was a cross of Chemdawg and Northern Lights, or perhaps Chemdawg, Northern Lights, and Skunk #1.