Green Crack | Cannabis Oil Cartridge | Sativa | Skunk #1 x Unknown Indica | 1g | Green Crack is a stimulant type cultivar that many cosumers utilize for energy, focus, or a caffeine substitute. Green Crack is sometimes referred to as Green Quack because some cannabis companies do not like labeling something as "crack". Green Crack is a super sativa with a fruity and woody aroma, it's flavor is sweet and fruity and can cause paranoia in some users because of it's speedy effects.