Guru, also called Guru #10, is a hybrid weed strain made from a genetic cross between Forbidden Fruit and Petrol OG.. Guru is 30% THC, making this strain an ideal choice for experienced cannabis consumers. Leafly customers tell us Guru effects include sleepy, relaxed, and tingly. Medical marijuana patients often choose Guru when dealing with symptoms associated with fatigue, anxiety, and lack of appetite. Bred by Swamp Boy Seeds, Guru features flavors like grapefruit, pineapple, and coffee. The dominant terpene of this strain is unknown The average price of Guru typically sits at $60. If you’ve smoked, dabbed, or consumed Guru, tell us about your experience by leaving a strain review.