Originally bred in Humboldt County, California, its precise genetics remain a bit of a mystery, but what we do know is that Humboldt is an Afghani landrace crossed with an unknown hybrid. With THC levels hovering around the 19% mark, Humboldt is a great strain for anyone wanting a daytime smoke while not feeling too sedated. With its moderate THC level, the high will leave you feeling relaxed but in a sociable mood.