OG 13. This strain is a cross of OG Kush and G-13. The result is a pungent Indica dominant Hybrid that will leave you with immediate pressure in your head. It has been argued constantly whether G-13 is a Sativa or Indica, it has traits of both (with effects and plant structure) and that’s not surprising when you hear of the legend behind it. It’s relaxing, but not condusive to sleep as it can cause a slight rise in heartbeat. Smoke is pungent and expansive, it will quickly fill your room and linger. Effects and genetics of OG-13 are nearly identical to a better known strain called MK Ultra.