Grapefruit (Cindy 99 x Sativa) x Durban Poison Grapefruit Durban is everything you need in a sativa-dominant strain! A soaring, roller-coaster, Durban high is coupled with a distinct flavor of pink grapefruit - the result of a cross between the pure landrace sativa Durban Poison and the legendary and mysterious Grapefruit. Jack Herer, Haze, and Durban lineages all cross together in this excellent-tasting strain to give it a legendary pedigree second to none.