Strain guideOG #18 (Private Reserve)
Indica-Dominant Hybrid

OG #18 (Private Reserve)

Type
Indica-Dominant Hybrid
Dominant terpene
Myrcene

Effects

Onset & progression

Fast-acting: 5-10 minutes onset when smoked/vaporized; initial phase (0-15 minutes): warming sensation behind eyes and temples; early phase (15-30 minutes): mental effects prominent - fluid thoughts, mood elevation, mental engagement from 30% sativa influence; mid phase (30-60 minutes): body high becomes dominant - physical relaxation spreads downward, muscle tension releases, weighted sensation, indica heritage apparent

Duration

Peak effects: 2-3 hours with notable presence; substantial 'legs' - residual effects 4+ hours reported, especially with larger doses or concentrates; comedown: increased appetite common, gentle drowsiness, smooth transition without crash or irritability

Common effects

Mental: elevated mood and contentment; mental relaxation without complete sedation initially; increased sensory appreciation (music, food); introspection or sociability depending on setting; mild spaciness or difficulty with complex thought chains; Physical: deep muscle relaxation and tension release; weighted body sensation particularly in limbs; potential couch-lock during peak (especially higher doses); pain relief and physical comfort; pronounced appetite increase; eventual drowsiness making it evening-suitable

Potential adverse effects

Dry mouth (common, manageable with hydration); dry eyes (common, eye drops helpful); mild dizziness in newer consumers; headache if overconsumed; occasional anxiety or paranoia in THC-sensitive individuals or when exceeding tolerance; significant coughing when smoking due to resin density

Ideal occasions

Evening relaxation and unwinding after demanding days; sleep preparation 1-2 hours before bedtime; pain and discomfort management (chronic pain, muscle tension, headaches); low-key social situations with close friends; creative or meditative solo activities (music listening, films, journaling); weekend afternoons and evenings when responsibilities are complete

Not recommended for

Morning or early-day use requiring alertness and productivity; high-energy social events or parties; situations demanding sharp mental focus or complex problem-solving; new cannabis consumers or those with low THC tolerance; individuals sensitive to anxiety from high-THC strains

Terpenes

Dominant terpenes

Myrcene (musky, earthy, skunk base - contributes to sedative qualities); Limonene (bright citrus, lemon zest sharpness - mood elevation); Caryophyllene (spicy, peppery complexity with clove and wood notes - CB2 receptor interaction)

Secondary terpenes

Linalool (subtle floral sweetness, lavender notes - smooths diesel harshness); Pinene (fresh pine undertones - adds clarity to aromatic experience)

Cannabinoid profile

THC: 16-23% typical range (18-21% most common); select phenotypes and concentrates may reach 28%+; CBD: <1% (usually 0.5%); CBG: trace amounts around 1%; THC-dominant profile with negligible CBD creates intense psychoactive experience; best suited for experienced consumers with established tolerance; potency varies by batch, cultivator, growing conditions, and harvest timing

Lineage

Lineage & origins

Selected phenotype from OG Kush S1 seeds by DNA Genetics' Reserva Privada (mid-2000s); OG Kush parentage traces to Florida-bred cultivar refined in Southern California (early 1990s); commonly cited genetics include Chemdawg crossed with Lemon Thai and Pakistani Kush; developed in Amsterdam but carries California Kush genetic fingerprint; award-winning: 3rd place Indica 2007 High Times Cannabis Cup; 2nd place Indica 2009 High Times Cannabis Cup; 1st place Indoor Hydro 2011 Spannabis Cup

Genetics & phenotypes

Indica-dominant hybrid expressing 70/30 indica-to-sativa ratio; feminized seeds provide phenotype consistency; plants grow moderately tall with stretch during early flowering; medium-to-large internodal spacing; robust lateral branching supporting substantial secondary bud sites; dense and rocky bud architecture with tightly stacked calyxes; exceptional resin coverage with thick uniform trichome fields; forest green coloration with vibrant orange pistils; some phenotypes may develop purple hues with temperature drops; minimal hermaphrodite expression when stress is managed

Comparable strains

Tahoe OG (OG Kush phenotype, similar diesel-pine-citrus, more balanced effects with stronger lemon); Kosher Kush (DNA Genetics, similar terpene profile, sweeter aroma, heavier body effects); True OG (OG Kush descendant, more Hindu Kush earthiness, less sour diesel); SFV OG (San Fernando Valley phenotype, more sativa-leaning with greater mental stimulation); Kimbo Kush (Blackberry Kush x Starfighter, myrcene-dominant, berry undertones, heavier couch-lock)

Growing

Flowering time

8-9 weeks (56-63 days) from 12/12 light cycle indoors; some phenotypes benefit from 65-70 day extension for maximum resin maturity; outdoor harvest: late September to early October

Plant structure

Medium-to-tall plants with 50-100% height gain during first 2-3 weeks of flowering; somewhat open branching benefits from training (topping, SCROG); medium-to-large internodal spacing; robust lateral branching; support recommended during late flowering due to bud weight; broader leaves consistent with indica dominance

Resilience

Relatively forgiving for OG genetics; minimal hermaphrodite expression with proper stress management; benefits from environmental consistency; responds well to training techniques; prefers warm Mediterranean-like climate but adaptable to various conditions

Yield potential

Indoor: 500-600g/m² (17.6-21.2 oz/m²); outdoor: 20+ oz per plant; notably improved yields compared to original OG Kush; dense bud structure maximizes harvest weight relative to plant size

Quality indicators

Dense, chunky bud structure with minimal stem; thick uniform trichome coverage visible on sugar leaves; vibrant orange/rust pistils well-distributed; strong pungent aroma (muted or hay-like smell indicates poor curing or age); slight stickiness when broken apart from resin presence; even coloration without brown or yellowed sections; properly cured minimum 14 days (30+ optimal); stored at 58-62% RH for terpene and potency preservation

Information provided is for educational purposes and represents compiled customer experiences and industry knowledge. Cannabis affects individuals differently; described experiences may not reflect every user's response. This does not constitute medical advice - consult qualified healthcare professionals regarding cannabis use. Cannabis laws vary by jurisdiction; consumers are responsible for understanding and complying with local regulations. Always purchase from licensed, regulated sources providing third-party lab testing. Terpene and cannabinoid profiles vary by cultivator, batch, growing conditions, harvest timing, and curing practices. Request current certificates of analysis (COAs) for accurate product information. Start with smaller amounts to assess individual response, particularly for high-THC strains.