Green Caffeine is a sativa weed strain made from a genetic cross between Green Crack and Caffeine. This strain is a stimulating and uplifting sativa that has a citrus and earthy flavor. Green Caffeine is 21% THC, making this strain an ideal choice for experienced cannabis consumers. Leafly customers tell us Green Caffeine effects include creative, euphoric, and alert. Medical marijuana patients often choose Green Caffeine when dealing with symptoms associated with fatigue, depression, and anxiety.