Sour Diesel x Pure OG Kush sits between Sour Diesel and Pure OG Kush: the East Coast benchmark for aggressive chemical fuel on one side, the first OG Kush clone CSI ever held, most likely an early OG Kush S1 from the late 1990s or the start of the 2000s on the other. What CSI sell is access to their clone collection in seed form. The parents are the cuts themselves, not a line bred to resemble them.
Written this way, Sour Diesel is the mother and Pure OG Kush the pollen donor. Reversing a cross is not a formality; which plant carries the seed shapes what comes out of the pack.
Genetic Lineage
- Mother: Sour Diesel. The East Coast benchmark for aggressive chemical fuel. Its own cross is most likely Chemdog 91 crossed to a Super Skunk in 1990s New York.
- Father: Pure OG Kush. The first OG Kush clone CSI ever held, most likely an early OG Kush S1 from the late 1990s or the start of the 2000s. CSI put its willingness to hybridize down to that S1 background.
- What the cross is reaching for. One side brings the structure and the other brings the nose. The plants worth keeping out of a pack are the ones that hold both rather than picking a side.
Flavor and Aroma Profile
The two halves stack rather than blend, which is the whole reason to run it.
- The Aroma. Aggressively chemical and pungent with greasy resin from the Sour Diesel side, against the classic OG signature - earth and pine with a fuel edge from the Pure OG Kush side.
- The Taste. Solvent and sour, greasy up front, turning to earthy and piney with OG weight, finishing sharper than it starts through the exhale.
Where the parents disagree
- Timing. Sour Diesel runs ten to eleven weeks, with faster plants nearer sixty-seven days, and that is the half of this cross you can actually plan around.
- The smell is a negotiation. Aggressively chemical and pungent with greasy resin on one side against the classic OG signature - earth and pine with a fuel edge on the other. Neither wins outright in every seedling.
- Build. On the Sour Diesel side: tall and lanky with wide internodal spacing, heavy early stretch, rated moderately challenging. On the Pure OG Kush side: OG-type plants open out rather than fill in. Select early rather than trying to train your way out of it.
- They pull differently. Growers put Sour Diesel at head-forward and energetic and Pure OG Kush at potent and focused; settling and physical. Which end a plant lands on is the main variable.
Cultivation and Growth Traits
- Plant Structure. The two parents disagree here, so plan for range. Sour Diesel is tall and lanky with wide internodal spacing, heavy early stretch, rated moderately challenging. Pure OG Kush is OG-type plants open out rather than fill in.
- Vegetative Phase and Stretch. Shape the plant before the flip. Correcting a frame in week six is harder work than setting it in week two.
- Flowering Time. Sour Diesel runs ten to eleven weeks, with faster plants nearer sixty-seven days. Start checking trichomes a week before you expect to be ready.
Effects and Experience
- The Mind. Growers describe Sour Diesel as head-forward and energetic.
- The Body. Pure OG Kush is reported as potent and focused; settling and physical, and that is the side supplying the weight here.
In the pack
7 feminized seeds per pack. Feminized seeds from Humboldt CSI. What they sell is preservation work: old clones reversed into seed so the line survives past whoever is currently keeping it alive. Authentic Humboldt CSI genetics.
Sour Diesel x Pure OG Kush – Humboldt CSI
- Brands CSI Humboldt
- Product Code: 9159
- Availability: 3
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$150.00
Tags: cannabis seeds, feminized seeds, Humboldt CSI, CSI Humboldt, Sour Diesel, Pure OG Kush, strain guide

