Grapefruit Diesel from Concrete Jungle Seeds. A strain characterised by its pungent tangy and fruity aroma. A Indica/Sativa hybrid, Grapefruit Diesel expresses the best of both worlds: compact growth with a well-branched structure. This creates rapid flowering, finishing in just 8 weeks. An uplifting, positive effect worthy of the best Sativa strains. Its resin-coated buds, which can take on a bright green tone, give off an intensely powerful citrus scent backed by that famous diesel gas.