CANNALIB · STRAIN DOSSIER · OG 18
OG 18
2 independent sources put THC at 22%; 569 flower lab samples give a 10th to 90th percentile band of 16.9 to 27.6%; 1 recorded parent; 37 recorded descendants. It placed in results from Highlife Cup (Netherlands), Errl Cup and Spannabis Champions Cup.
OG 18 is a hybrid cannabis strain bred by Reserva Privada (Amsterdam). Lab tests put its THC between 16.9 and 27.6% (the middle 80% of 569 flower samples). The terpenes most often reported are linalool, limonene, β-caryophyllene. Recorded parents: Og Kush. Stated flowering time 63 days. 12 cup placings on record, 5 verified against published results.
● frozen 2026-09-29 · API 0.7.1-stdlib
● evidence bar: thc 2 independent sources
● type: hybrid
22%
THC, most-agreed claim
2 independent sources
16.9–27.6%
Flower lab range
10th to 90th percentile of 569 samples
1
Recorded parents
with sources, never guessed
37
Recorded descendants
through stated parent links
5/12
Cup results, verified/total
placings found in published results
4
Pictures on record
shown with source and credit
CHEMISTRY, CLAIM BY CLAIM
Every THC claim, and who made it.
| THC | Independent sources | Who states it |
|---|---|---|
| 27.5% | 2 | or_prr00150, nv_gnfvbs_2018_2019 |
| 22% | 2 | leafly_flat, cropking, leafly_flat_enrich |
| 17.3% | 2 | nv_ccb_lab_library, nv_gnfvbs_2018_2019 |
| 23.2% | 2 | nv_ccb_lab_library, nv_gnfvbs_2018_2019 |
| 25.5% | 2 | or_prr00150, nv_gnfvbs_2018_2019 |
| 26.2% | 2 | or_prr00150, or_olcc_rich_enrich |
| 27.6% | 2 | or_prr00150, or_olcc_rich_enrich |
| 27.9% | 2 | or_prr00150, or_olcc_rich_enrich |
| 28.8% | 2 | or_prr00150, or_olcc_rich_enrich |
| 29% | 2 | or_prr00150, or_olcc_rich_enrich |
| 30.6% | 2 | or_prr00150, or_olcc_rich_enrich |
| 31.1% | 2 | or_prr00150, or_olcc_rich_enrich |
Lab range 16.9 to 27.6% THC is the 10th to 90th percentile of 569 flower lab samples, median 22.5%; CBD 0 to 0.1% over 483 samples.
top terpenes by stated value: linalool, limonene, β-caryophyllene, β-myrcene, trans nerolidol, β-pinene
788 chemistry rows on record. Flagged rows never used as potency: 43 non flower, 102 quality flagged, 0 percent outliers.
GROW CLAIMS
Height and flowering, as stated.
| Height | Independent sources | Who states it |
|---|---|---|
| 152 to 244 cm | 1 | cropking |
| Flowering | Independent sources | Who states it |
|---|---|---|
| 63 days | 2 | cropking, hytiva |
| 126 days | 1 | master, hytiva |
LINEAGE
Recorded parents, and how many sources agree.
| Parent | Sources | Who states it |
|---|---|---|
| Og Kush | 1 | summary:lineage |
37 descendants through recorded links, including Berserk Og 18 Bx, Candy Kush Pop, Dayton Hammer, Fire 18, Gas Candy, Holy Grail Og, Lemon 18 Feminized Seeds Crockett Family Farms, Hg23 Aka Michael Jordan.
COMPETITIONS AND AWARD CLAIMS
Cup results with sources; claims with verdicts.
| Year | Competition | Category | Place | Checked |
|---|---|---|---|---|
| 2023 | Highlife Cup (Netherlands) | Old Skool | 1st | verified |
| 2023 | Errl Cup | HAND CRAFTED - MOON ROCKS | 1st | unverified |
| 2022 | Errl Cup | NON-SOLVENT | 1st | verified |
| 2019 | Copa Medellín | Indica | 2nd | unverified |
| 2017 | Errl Cup | Flower Indica | 2nd | verified |
| 2017 | 710 Degree Cup | Best Arizona Patient/Caregiver Flower – Indica | 3rd | unverified |
| 2016 | 710 Degree Cup | Best Flower Indica | 1st | unverified |
| 2016 | 710 Degree Cup | Flower Indica | 3rd | unverified |
| 2015 | THC Championship (The Hemp Connoisseur) | Adult-Use Hybrid | 2nd | unverified |
| 2013 | Copa Canarias / Canarian Cannabis Cup | Copa Local – Mejor Exterior | 3rd | unverified |
| 2011 | Spannabis Champions Cup | Mejor variedad de interior Hydro | 1st | verified |
| 2009 | High Times Cannabis Cup (Amsterdam) | Indica Cup | 2nd | verified |
Award claims checked 6 confirmed · 12 unchecked. Only confirmed claims count as results.
| Claim | Year | Source | Verdict |
|---|---|---|---|
| European Champions Cup '10 | not stated · matched 2011 | hytiva | confirmed |
| Spannabis Indoor Hydro Cup '10 | not stated · matched 2011 | hytiva | confirmed |
| Champions Cup | not stated · matched 2011 | hytiva | confirmed |
| Spannabis | not stated · matched 2011 | hytiva | confirmed |
| Champions Cup | not stated · matched 2011 | master | confirmed |
| Spannabis | not stated · matched 2011 | master | confirmed |
| High Times Cannabis Cup '09 | not stated | hytiva | event_ambiguous |
| High Times Cannabis Cup '10 | not stated | hytiva | event_ambiguous |
| High Times | not stated | hytiva | event_ambiguous |
| Cannabis Cup | not stated | hytiva | event_ambiguous |
| High Times | not stated | master | event_ambiguous |
| Cannabis Cup | not stated | master | event_ambiguous |
| second place | Indica Cup | Cannabis Cup | 2018 | 2018 | archive.org | unchecked |
| 2nd | 2nd Place Indica Cup | Cannabis Cup | 2010 | 2010 | archive.org | unchecked |
| Best Indica | Indica Cup | 2010 | 2010 | archive.org | unchecked |
| 3rd | Best Indica | HIGH TIMES Cannabis Cups | 2005 | 2005 | archive.org | unchecked |
| Hydro Cup | not stated | hytiva | unchecked |
| Hydro Cup | not stated | master | unchecked |
PICTURES, WITH CREDIT
4 pictures on record. Three shown, each with its source.
credit: allbud.s3.amazonaws.com · shown with credit, copyright unverified
credit: cannabisindustrie.nl · shown with credit, copyright unverified
credit: images.hytiva.com · shown with credit, copyright unverified
How to read this page
Every value is a stated claim with its sources. Where sources disagree all claims are listed. The lab range is the 10th to 90th percentile of flower lab samples and is never blended with seed-bank claims. Parents are recorded links, never guessed. Pictures are shown with their source and credit; copyright is unverified. Nothing on this page was invented, averaged across sources or merged from another name.
Aliases on record: OG #18, O.G. 18, 018NY6XC00VT40EN13NMENVV1R
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dossier og-18 · frozen 2026-09-29 · published by CannaLib, a Plausible Deniability project · Cite as: CannaLib (2026). OG 18 strain dossier. https://cannalib.org/strains/og-18/