Runtz FAST is a quicker-flowering version of Runtz, the Zkittlez / Gelato cross that has garnered so many cannabis headlines in recent years. The 'FAST' attribute is imparted by the addition of OG Auto genes yet without transferring the auto-flowering properties usually associated with ruderalis genetics. A vigorous and hardy strain. Runtz FAST is 70% indica, 20% ruderalis with 10% sativa. Growers can now experience the great terpene profile of Runtz with shorter flowering times. Care should be taken not to overfeed this strain. Indoors, flowering takes 50 - 53 days with yields in the range 400 - 450 gr/m2. Outdoors in the northern hemisphere, harvest is due at the end of September with each plant capable of producing as much as 1000 gr. Colas are long and multi-coloured with heavy resin production. Black pepper spice and pungent fuel scents are predominant complemented by sweet 'n' sour candy and earthy pine. THC production is between 18 - 21% or more while CBD is low at just 0.1%. The effect is functional for daytime use as well as being useful for creatively-minded persons. Reports indicate that it is useful for mild pain relief.