Fatso Auto is an inbred, indica-dominant line that grows into a taller-than-average auto-flowering plant. Like other autos from Atlas Seeds, this strain has high vigour as well as a good tolerance to the cold and to drought conditions. Atlas Seed claims between 99.9% - 99.96% female plants from these auto-flowering seeds.

Well-branched plants have a longer internodal spacing with very chunky, resin-coated buds at maturity. From germination through to harvest time takes approx. 75 days.

Fatso Auto has a strong fuel-like scent and very high THC production of 20 - 28%. The effect is 'head-band' like, with an intensely, physically relaxing effect that can become 'couch-lock' with continued consumption.