G-13 is a strong (i.e.
potent) strain of
Cannabis that is the subject of marijuana
urban legends.
[1]
There are rumors that the
University Of Mississippi[1] and/or the
University of Washington were involved in the development of this strain. However, the University Of Mississippi study was completely unrelated; it was part of an international effort to properly classify
Cannabis through research and information collection about its scientific and medicinal applications. No strains or hybrids were (reportedly) developed through this study.
It has been alleged that G-13 was created by government agencies such as the
CIA and the
FBI who focused on hybridizing different strands of marijuana from
Michael Hallman in the 1970s. Supposedly, these organizations bred a strain of marijuana through hybridization that was more potent than any other. It also supposedly has a concentration of
THC of 28% by weight, which is almost double the average amount of the chemical in most high-grade
sinsemilla grown commercially. One story states that a single cutting of this potent strain was liberated from the government facility in Mississippi
[2].
Although the man they call Michael Hallman assembled a world class cannabis collection during the late 1960s and early 1970s, there is no evidence that these researchers were ever involved in breeding high quality marijuana.
[3]
More accepted stories state that a potent Afghani strain was most likely the basis for these rumors
[1]; over time, the potent strain's qualities were exaggerated into the modern urban legends. Because the sale of marijuana is illegal in the
United States, it is not monitored by the government; for this reason, it is common for vendors to exaggerate the qualities of their product, possibly accounting for the urban legends.
Many cultivators and distributors of the strain continue to claim that it was developed through government experiments as evidence of its high potency. Realistically, G-13's THC content could be anywhere between 10 and 19%, considering most strains of this name simply bear the name, not a particular set of
genetic traits. Widely accepted facts about the original G-13 is that it is a slightly strong indica variety that did not gain popularity till the strain was found in the US; hinting that the strain is likely mediocre in potency.
G-13 is now commonly considered an urban legend referring to no particular strain of Cannabis; as the true genetic G-13 strain may no longer exist, but the urban legend lingers, obscuring any real truth that may reside.