California Grapefruit strain is bred for the very first time by DNA Genetics. California Grapefruit strain is an easy to breed cannabis plant that needs to be well maintained in order to have a very good, satisfying result. It is among the strains of marijuana that have a THC level below 20%. Another cannabis plant that hobbyists should smoke before trying out the high THC one. Its CBD is unfortunately not known. This Californian herb has flavors of Orange, Lime and Grapefruit.