Primus, also called Primus OG, is a complex indica strain that combines Arcata, Trainwreck, and 303 OG. Each parent strain passes on something special to Primus: Arcata with its creative activation, Trainwreck with its long-lasting euphoria, and 303 OG with its sour fruit flavors. This trifecta of duration, fragrance, and quality of high makes for a potent hybrid cherished by patients and recreational consumers alike.