Kaboom - Fantasic this “super hybrid” known as Kaboom! Mostly Sativa After much success with backcrossing techniques, and decided to re-visit one particular combination that had untapped potential. Crossing a Jack’s Cleaner F1 phenotype with Vortex. The result is an 80% Sativa that has been described as an “explosion of potency” Kaboom is equally impressive with its yields. Growing Kaboom Marijuana Has Medical Benefits.