OG #18
The legendary OG Kush backcross from DNA Genetics—a multi-award winning powerhouse known for its "fuel" funk and knockout potency.
What is OG #18?
OG #18 (also known as "Reserva Privada") is a refined backcross of the original OG Kush, specifically selected by DNA Genetics. This phenotype was isolated from a large selection of OG Kush seeds for its unique sour, fuel-heavy aroma and significantly improved yield compared to the original cut.
Winning consecutive High Times Cannabis Cups, OG #18 has cemented its legacy as the "OG of OGs." It delivers a complex profile of sour lemon, pine, and Chem-style diesel fuel. For growers seeking the definitive Sour OG experience with stable genetics, an authentic breeder cut ensures you are capturing the exact terpene profile that made this strain a worldwide staple. Starting with a rooted clone helps manage the characteristic OG stretch while maximizing the flower's dense, resinous potential.
Terpene Profile
The OG #18 terpene profile is notoriously "loud." It is defined by a heavy concentration of gas and fuel notes, balanced by a sharp citrus acidity. It is one of the few strains where the scent is so pungent it can often be detected through multiple layers of packaging.
Growing OG #18
OG #18 is a vigorous grower that displays classic OG architecture: thin branches and significant nodal spacing that fills in rapidly during flower. It is a heavy feeder that can handle higher EC levels than many modern hybrids. Expect a 2.5x to 3x stretch once the lights flip to 12/12.
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🏗️Support RequiredHeavy bud sets on thin OG branches mean double-trellising is mandatory to prevent snapping.
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✂️TrainingResponds exceptionally well to topping and "super-cropping" to manage height.
To maximize the fuel nose, avoid over-drying. OG #18 terps are volatile; a slow, cool 14-day dry at 60°F/60% RH is essential for that award-winning jar appeal.
Flower & Bag Appeal
While some modern "washers" are bred for brittle trichomes, OG #18 is bred for Flower Excellence. The buds are lime green with deep purple hues possible in cooler temperatures, covered in oily, sticky resin that makes the flower difficult to break down by hand.
The visual appeal is classic "Kush"—golf ball-sized nuggets with long, bright orange hairs and a crystalline coating that looks like it was dipped in sugar. It remains a top-tier choice for commercial flower production due to its reliable weight and unmistakable aroma.
Effects & Experience
OG #18 is a "heavy hitter" in every sense. It is highly sedative and deeply relaxing, making it a favorite for medical patients or those looking to unwind. The high is long-lasting, often lingering for 3+ hours.
Best Clone Pairings
Looking to build a diverse garden? These selections complement the OG #18 growth habit and terpene profile perfectly:
Frequently Asked Questions
OG #18 is a selected phenotype of an OG Kush backcross. It was chosen specifically because it yields significantly more than the standard OG cuts while maintaining a much more intense "sour fuel" aroma that consumers demand.
While OG #18 has incredible resin, it is an "oily" strain. It is generally not considered a "washer" for ice water hash because the trichomes don't separate easily. However, it makes world-class BHO and flower rosin due to its high terpene content.
Expect a significant stretch. It can easily triple in height during the first three weeks of flower. Growers with limited vertical space should top the plants early and use a ScROG (Screen of Green) setup.

