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Summary
Details
Cultivation
About Humboldt Seed Organization
Sour Diesel is quite simply one of the best cannabis strains in the cannabis kingdom that is the USA. A feminised, Sativa-leaning hybrid with a lot to offer in terms of her potential for heavy yields, coupled with an exotic flavour and a hard-hitting effect.

Sour Diesel comes from the reliable and exotic heritage of Mexican Sativa and Chemo.

Her crop is stunning – very solid, elongated buds, packed to the brim with sticky resin.

Sour Diesel #2 smells purely like sour fruit, but her taste is more complex, blending sour fruit with exotic wood, oil and spices.

She delivers an intensely uplifting, potent and lengthy psychoactive experience. A very cerebral, energising effect that’s perfect for social activities.

Sour Diesel #2 grows without fuss and is resistant to moisture and insect problems. She loves to stretch and, hence, she’ll yield maximally by limiting vegetative growth and using the SOG method, indoors. When grown outdoors, she prefers warm and sunny conditions, like those found along the Mediterranean, or the protection of a greenhouse.
Flowering
Photoperiod
Photoperiod
Full Term
Sex
Feminized
Variety
Sativa-dominant
Genetics
Mexican Sativa X Afghan X Kemo
THC Levels
High
CBD Levels
Low
Environment
Indoor, Outdoor, Greenhouse
Flowering Time
Medium
Indoor Flowering
10-11 weeks
THC %
17-20 %
CBD %
0.1 %
Sativa %
70 %
Indica %
30 %
Indoor Yield
400-600 g/m2
Outdoor Yield
2000-3000 g/plant
Plant Height
300 cm
Effects
Head, Long-lasting
Aroma & Flavors
Fruit, Sour, Spice, Woody
Skill Level
Beginner
Harvest Month
October (NH) | April (SH)
Yield
Xl

Humboldt Seed Organization


Founded in 2009 in Humboldt County, California, Humboldt Seed Organization (HSO) brings together a team of veteran breeders with over 25 years of hands-on cannabis experience. Their mission is to combine deep-rooted cultivation knowledge with scientific innovation to produce elite, stable genetics for growers of all sizes—from home enthusiasts to commercial operations.

HSO’s catalog features premium regular and feminized seeds developed through rigorous selection and phenotyping. Each strain is bred with a strong focus on quality, terpene expression, and performance in various environments.

What sets HSO apart is its commitment to regenerative agriculture and sustainability. The team promotes organic, closed-loop practices that respect nature and reduce environmental impact. This ethos extends to their global partnerships, including collaborations with ISO- and GMP-certified pharmaceutical labs and leading universities in the U.S. and Spain.

Now distributed in over 50 countries, HSO is internationally respected for pushing the boundaries of cannabis breeding while preserving the plant’s natural integrity. Overgrow is proud to offer these renowned genetics to South African growers seeking exceptional cannabis from the heart of California’s Emerald Triangle.