It has a powerful spicy, plant-like taste and smell with a hint of diesel; the aroma alone can alert snoopy neighbors to even a carefully concealed pot grow. Not surprisingly, Chemdawg is used to produce Sour Diesel, one of the world's most popular strains. Little is known about Chemdawg's history or genetics, though there are urban legends involving a Grateful Dead concert, a handful of seeds, and a grower named Chemdog.