Katsu Seed OG #18 S1Â
OG #18 S1 from Katsu Seeds is a feminized “selfed” version of the legendary OG #18 clone. While the original phenotype was famously selected and popularized by DNA Genetics (Reserva Privada), Katsu Seeds offers this S1 version to provide a stable, seed-form representation of that specific “Plant #18” selection.
In the world of OGs, #18 is often considered the “sour” and “heavy-yielding” sibling of the family.
- Genetics: OG Kush (#18 Phenotype) x OG Kush (#18 Phenotype) — an S1 (Selfed) cross.
- Origin:Â OG #18 was originally a standout plant chosen from a large batch of feminized OG Kush seeds. It was selected specifically because it outperformed standard OGs in yield and had a more intense sour/fuel terpene profile.
6 Feminized Photoperiod Seeds per pack!


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