Not quite as famous as its ‘pops’ (Jack Herer), Lemon Jack certainly deserves more credit in the cannabis world. This strain is a distinct cross between Jack Herer x Lemon Kush. Lemon Jack is psychoactive in its nature, producing focus and energy a kin to a strong cup of coffee. Best used in the daytime, Lemon Jack can treat headaches, fatigue, and appetite loss but may increase anxiety and paranoia. The plants have a chemical-like aroma that smells a little bit like lemon pinesol.