Buy Green Crack THC Vape Cartridges UK Online. Green Crack, also known as “Green Crush”, is a potent, uplifting super-sativa, descended from the storied Skunk #1 strain, and a still unknown landrace indica. With a kiwi and melon forward taste and a bold 3:1 ratio of THC and energizing THCv, you’ll be flying high and ready to seize the day, minus the munchies.