Sour Diesel

Sour Diesel
A bud of Sour Diesel showing trichomes and THC crystals
Genus	Cannabis
Species	Cannabis sativa dominant hybrid

Sour Diesel is a hybrid strain of Cannabis sativa. Described as "a cross between cannabis and caffeine", it is known for its "uplifting qualities" and its pungent aromas of fuel and citrus. Samples of the strain have tested as high as 30.6% THC, and the strain is also high in the terpenes alpha-Pinene,caryophyllene, and humulene. In 2016 it was the fourth most popular strain in the United States, after Blue Dream, Girl Scout Cookies, and Gorilla Glue #4, according to a report by the cannabis information site Leafly.Canadian medical cannabis producer Aphria has rebranded Sour Diesel as Kusawa in order to "circumvent public stigma".

According to Leafly, as of 4/23/2017, an ounce of Sour Diesel can be priced in a Denver dispensary from anywhere between $120 and $180. However, Sour Diesel was formerly known as a premium strain of marijuana, with the price for one ounce rising to over $1000 on Wall Street in 2004. It was selling for $240 per ounce in Denver during 2014.

Sour Diesel is one of the parent strains of Blueberry Diesel.

According to CannaSOS, Sour Diesel is a cross of Original Diesel and unknown Skunk phenotype, but the origins of the strain remains unknown. One account traces its seeds to "a single bag of legendary cannabis sold at a Grateful Dead concert in Indiana in 1990", the work of an East Coast breeding collective. Alternatively, American journalist Jeff Hobbs credited the strain's development to his friend Robert Peace prior to Peace's death in 2011. A third version attributes it to a New York City grower known as "AJ" during the mid-1990s. It includes genes from Nepal, Kashmir, and Pakistan, and is thought to be descended from Chemdawg, Super Skunk, and Northern Lights. Sour Diesel is also an ancestor of the Tsunami and Sour Tsunami strains.