The effects of Sour Jack are very much Sativa. Its a mix of half Sour Diesel and half Jack here. The aroma of Sour Jack is intense with pungent mix of diesel fuel and citrus. Overall, it should smell sour with notes of lemon pine. The uplifting effects can provide a spark of energy and minimize body fatigue. Sour Jack is a great strain to fight off depression and help you stay active.