Chem Dog is a legendary cultivar dating back to the early 90's needing little introduction. It is credited as the root genetic for many famous hybrids including Sour Diesel and OG Kush. Its own genetic background is somewhat unclear, although rumoured to come from a cross of Nepalese and Thai.

Chemdog is widely known for its unmistakably pungent and sharp diesel aroma. Plants typically grow to a moderate height with manageable stretch during early flowering growth. Chemdog is capable of good yields and has quite a unique structure of tightly stacked, tapered flowers.