Critical Sour is an early-finishing cannabis strain primarily bred for outdoor cultivation. It has an interesting and somewhat unusual background being the product of a Maroc x Grapefruit mother and a father that was a compex auto-flowering hybrid strain of Auto NL x Auto NL x Auto Critical. This father was used in order to speed up the flowering times; although it isn't actually an auto-flowering plant approxiamtely 1 in 30 plants are in fact autos.

This is an easy to grow plant that doesn't grow too tall but which produces very good yields. Being a strain for general outdoor cultivation means that it is a hardy