The OG #18 > Reserva Privada

Quick Summary: The OG #18 – Sour Power with Champion Lineage

The OG #18 by DNA Genetics / Reserva Privada is a feminized, photoperiod cannabis strain with strong indica dominance. Known for its fuel-heavy aroma, resin-loaded buds, and multiple cannabis cup wins, this strain is a top pick for growers seeking potency, yield, and a real West Coast experience.

Strain Highlights

• Genetics: OG Kush S1 (Pheno #18)
• Type: Mostly Indica
• THC Content: ~20%
• Indoor Flowering Time: 8–9 weeks
• Outdoor Harvest: Mid to late October
• Indoor Height: 90–120 cm
• Outdoor Height: 120–150 cm
• Stretch During Flowering: low – easy manageable indoors
• Indoor Yield: 500–600 g/m²
• Outdoor Yield: Up to 700 g/plant
• Autoflowering: No, photoperiod
• Beginner-Friendly: Yes
• Effect: Relaxing, euphoric, physically sedating
• Aroma & Terpenes: Diesel, sour, earthy, sweet
• Awards: Multiple Cannabis Cup wins

Genetics & Background

The OG #18 is a standout phenotype from OG Kush S1 genetics. Pheno #18 was selected for its higher yield, increased resin production, and uniquely pungent sour diesel flavor. The result is a robust West Coast strain that quickly gained legendary status.

Growth & Yield

Expect a medium-sized plant with a sturdy structure and strong lateral branching. Indoors, yields reach up to 600 g/m², while outdoor plants can exceed 700 g per plant in optimal conditions. The flowering cycle is relatively short, finishing in 8–9 weeks indoors.

Aroma & Flavor

This strain’s terpene profile is dominated by sour diesel and earthy gas notes with subtle sweet undertones. It’s loud in the grow room and pungent in the jar – a connoisseur’s delight and a staple in many US clone-only collections.

Effect & Usage

The OG #18 hits hard and fast, delivering deep physical relaxation with a euphoric mental buzz. Great for evening use, pain management, stress relief, or just zoning out on the couch after a long day.

Grow Info

Thanks to its resistance and stable growth pattern, The OG #18 is suitable even for less experienced growers. It responds well to training techniques like SCROG or topping and thrives both indoors and in Mediterranean-style outdoor climates.

FAQs about The OG #18

Is The OG #18 feminized?

Yes, it’s 100% feminized.

Is this strain autoflowering?

No, it is a photoperiod strain and requires a 12/12 light cycle to flower indoors.

How does The OG #18 compare to regular OG Kush?

Pheno #18 produces higher yields, more resin, and a more intense sour-diesel flavor than most OG Kush cuts.

What is the best use time for this strain?

Ideal for evening use due to its strong physical effects and relaxing qualities.