Sour Diesel might have a hazy past, but that doesn’t stop it from being one of the best weed strains today. Because of the underground nature of the cannabis industry in the 1980s and 90s, the Sour Diesel marijuana strain origins are highly debated. Some theorize that true Sour Diesel was a distinct phenotype of the regular strain Diesel, while others believe it could be a sativa-leaning phenotype Chemdawg. Still, others claim that it is a cross between Chemdawg and Northern Lights or even a cross between Chemdawg, Northern Lights and Skunk #1. This popular strain has round, medium-sized buds with yellowish-green leaves and red pistils. The Sour Diesel strain is great for those looking to relax with a euphoric head high. Its effects are typical of most sativa strains and give the user a happy and energizing high, perfect for your morning wake and bake. What makes Sour Diesel one of the most recognizable strains of weed is the distinct scent of gas with hints of citrus. Take one hit of Sour Diesel and you’ll taste the notoriously harsh, sour smoke – don’t be surprised if you cough. The strain averages approximately 20% THC and 0.2% CBD, with Limonene, Myrcene, Pinenene and Linalool as the strain’s main terpenes.